criyle/codenet-compile-errors huggingface dataset:
Language: C++

#include <iostream>
#include <algorithm>
#include <cmath>
using namespace std;

int calcDigit(int);
int calcMaxDigit(int, int);

int main(void){
    int N;
    cin >> N;
    int a=1;
    int b;
    int min_digit=INT32_MAX;
    for(; a<=static_cast<int>(sqrt(N)); a++){
        if(N%a != 0){
            continue;
        }
        b = N/a;
        int digit = calcMaxDigit(a, b);
        if(digit < min_digit){
            min_digit = digit;
        }
    }
    cout << min_digit;
    return 0;
}

int calcDigit(int a){
    int i=1;
    while(1){
        if(a < pow(10, i)){
            return i;
        }
        i++;
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:19: error: 'INT32_MAX' was not declared in this scope
   14 |     int min_digit=INT32_MAX;
      |                   ^~~~~~~~~
a.cc:4:1: note: 'INT32_MAX' is defined in header '<cstdint>'; this is probably fixable by adding '#include <cstdint>'
    3 | #include <cmath>
  +++ |+#include <cstdint>
    4 | using namespace std;
Language: C++

#include<cstdio>  
#include<cmath>  
using namespace std;
long long n,ans; 。 
int s;
int main(){
    scanf("%lld",&n);  
    for(int i=sqrt(n);i>0;--i)   
        if(n%i==0){
            ans=n/i;
            break;
        }
    while(ans>0){  
        ++s;
        ans/=10;
    }
    printf("%d\n",s);
    return 0;
}

Compiler output:
a.cc:4:18: error: extended character 。 is not valid in an identifier
    4 | long long n,ans; 。
      |                  ^
a.cc:4:18: error: '\U00003002' does not name a type
    4 | long long n,ans; 。
      |                  ^~
a.cc: In function 'int main()':
a.cc:14:11: error: 's' was not declared in this scope
   14 |         ++s;
      |           ^
a.cc:17:19: error: 's' was not declared in this scope
   17 |     printf("%d\n",s);
      |                   ^
Language: C++

j#include <bits/stdc++.h>

#define INF 100100100
#define MOD 1000000007

using namespace std;
using ll = long long;
using ull = unsigned long long ;

#define FOR(i,n) for(ll i=0;i<n;i++)

ull log_10(ull N){
   ull count = 1;
   double N_ = N;
   while(N_>=10){
      N_/=10;
      count++;
   }
   return count;
}

vector<ull> prime;

int main(int argc, char const* argv[]){
   ios::sync_with_stdio(false);
   cin.tie(0); 

   ull N;
   cin >> N;

   for(ull i=1;i*i<=N+1;i++){
      if(N%i==0)prime.push_back(i);
   }

   ull MIN = log_10(N);
   for(ull i=0;i<prime.size();i++){
      MIN = min(max(log_10(prime[i]),log_10(N/prime[i])),MIN);
   }

   cout << MIN << endl;
   return 0;
}


Compiler output:
a.cc:1:2: error: stray '#' in program
    1 | j#include <bits/stdc++.h>
      |  ^
a.cc:1:1: error: 'j' does not name a type
    1 | j#include <bits/stdc++.h>
      | ^
a.cc:22:1: error: 'vector' does not name a type
   22 | vector<ull> prime;
      | ^~~~~~
a.cc: In function 'int main(int, const char**)':
a.cc:25:4: error: 'ios' has not been declared
   25 |    ios::sync_with_stdio(false);
      |    ^~~
a.cc:26:4: error: 'cin' was not declared in this scope
   26 |    cin.tie(0);
      |    ^~~
a.cc:32:17: error: 'prime' was not declared in this scope
   32 |       if(N%i==0)prime.push_back(i);
      |                 ^~~~~
a.cc:36:18: error: 'prime' was not declared in this scope
   36 |    for(ull i=0;i<prime.size();i++){
      |                  ^~~~~
a.cc:37:17: error: 'max' was not declared in this scope
   37 |       MIN = min(max(log_10(prime[i]),log_10(N/prime[i])),MIN);
      |                 ^~~
a.cc:37:13: error: 'min' was not declared in this scope; did you mean 'main'?
   37 |       MIN = min(max(log_10(prime[i]),log_10(N/prime[i])),MIN);
      |             ^~~
      |             main
a.cc:40:4: error: 'cout' was not declared in this scope
   40 |    cout << MIN << endl;
      |    ^~~~
a.cc:40:19: error: 'endl' was not declared in this scope
   40 |    cout << MIN << endl;
      |                   ^~~~
Language: C++

#include<bits/stdc++.h>

using namespace std;

int calc(long long v) {
	int k = 1;
	while (v >= 10) {
		v /= 10;
		k++;
	}
	return k;
}
int main() {
	ios::sync_with_stdio(false);
	cin.tie(0);
	long long n;
	cin >> n;
	int ans = 1e9;
	for (long long i = 0; i*i <= n; i++) {
		if (n%i == 0) {
			long long v = n / i;
			ans = min(ans, max(calc(i), calc(v));
		}
	}
	cout << ans << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:61: error: expected ')' before ';' token
   22 |                         ans = min(ans, max(calc(i), calc(v));
      |                                  ~                          ^
      |                                                             )
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main(){
  int n,b,ans=1e9;
  cin>>n;
  for(int a=1;a<=100000;i++){
    if(n%a==0){
      int keta=0;
      b=n/a;
      while(b){
        b/=10;
        keta++;
      }
      ans=min(ans,keta);
    }
  }
  if(ans==1e9){
    int keta=0;
    while(n){
      n/=10;
      keta++;
    }
    cout<<keta<<endl;
    return 0;
  }
  cout<<ans<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:25: error: 'i' was not declared in this scope
    7 |   for(int a=1;a<=100000;i++){
      |                         ^
Language: C++

#include<iostream>
#include<algorithm>
using namespace std;
using ll = long long;

int cnt_digit(ll n) {
	int cnt = 0;
	while (n > 0) {
		n /= 10;
		cnt++;
	}
	return cnt;
}

int main() {
	ll n;
	cin >> n;
	int cnt = 0;
	int ans = cnt_digit(n);
	for (int i = 1; i <= sqrt(n); i++) {
		int b = 0;
		b = n % i;
		if (b == 0) {
			cnt = max(cnt_digit(i), cnt_digit(n/i));
		}
		ans = min(ans, cnt);
	}
	cout << ans << endl;
	//system("pause");
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:20:30: error: 'sqrt' was not declared in this scope
   20 |         for (int i = 1; i <= sqrt(n); i++) {
      |                              ^~~~
Language: C++

#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
#include <climits>
#include <sstream>

using namespace std;

int main(){
  long int N;

  cin >> N;

  int F_min = INT_MAX;
  for(long int A = 1; A < sqrt(N); A++){

    if(N % A == 0){
      string a = to_string(A);
      string b = to_string(N / A);
      int f = max(a.size(), b.size());
      if(f < F_min) F_min = f;
    }

  }
  cout << F_min << endl;

	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:16:27: error: 'sqrt' was not declared in this scope
   16 |   for(long int A = 1; A < sqrt(N); A++){
      |                           ^~~~
Language: C++

#include<iostream>
#include<vector>
#include<sstream>
#include<string>
#include<numeric>
#include <algorithm>
#include<Math.h>
using namespace std;
int input(){
  int x;
  cin>>x;
  return x;
}
int abs(int x){
  if(x>=0){
    return x;
  }else{
    return -x;
  }
}
int gcd(int x, int y){
	if(x<y){
    return gcd(y,x);
  }
  if(y==0){
    return x;
  }
  return gcd(y,x%y);
}
int moji(char i){
  if(i=='a'){
    return 1;
  }
  if(i=='b'){
    return 2;
  }
  if(i=='c'){
    return 3;
  }
  if(i=='d'){
    return 4;
  }
  if(i=='e'){
    return 5;
  }
  if(i=='f'){
    return 6;
  }
  if(i=='g'){
    return 7;
  }
  if(i=='h'){
    return 8;
  }
  if(i=='i'){
    return 9;
  }
  if(i=='j'){
    return 10;
  }
  if(i=='k'){
    return 11;
  }
  if(i=='l'){
    return 12;
  }
  if(i=='m'){
    return 13;
  }
  if(i=='n'){
    return 14;
  }
  if(i=='o'){
    return 15;
  }
  if(i=='p'){
    return 16;
  }
  if(i=='q'){
    return 17;
  }
  if(i=='r'){
    return 18;
  }
  if(i=='s'){
    return 19;
  }
  if(i=='t'){
    return 20;
  }
  if(i=='u'){
    return 21;
  }
  if(i=='v'){
    return 22;
  }
  if(i=='w'){
    return 23;
  }
  if(i=='x'){
    return 24;
  }
  if(i=='y'){
    return 25;
  }
  if(i=='z'){
    return 26;
  }
  return 100;
  
}




int main() {
  long N;
  cin>>N;
  int x=-100;
  for(int i=1;i<(int)sqrt(N);i++){
    if(N%i==0){
      x=i;
    }
  }
  int y=N/x;
  int max=0;
  int xx=0;
  for(int i=0;x>0;i++){
    x/=10;
    max++;
  }
  for(int i=0;y>0;i++){
    y/=10;
    xx++;
  }
  if(xx>max){
    max=xx;
  }
  cout<<max<<endl;

  
  


  

  




  
  
}

  


Compiler output:
a.cc:7:9: fatal error: Math.h: No such file or directory
    7 | #include<Math.h>
      |         ^~~~~~~~
compilation terminated.
Language: C++

#include<iostream>
#include<vector>
#include<sstream>
#include<string>
#include<numeric>
#include <algorithm>
using namespace std;
int input(){
  int x;
  cin>>x;
  return x;
}
int abs(int x){
  if(x>=0){
    return x;
  }else{
    return -x;
  }
}
int gcd(int x, int y){
	if(x<y){
    return gcd(y,x);
  }
  if(y==0){
    return x;
  }
  return gcd(y,x%y);
}
int moji(char i){
  if(i=='a'){
    return 1;
  }
  if(i=='b'){
    return 2;
  }
  if(i=='c'){
    return 3;
  }
  if(i=='d'){
    return 4;
  }
  if(i=='e'){
    return 5;
  }
  if(i=='f'){
    return 6;
  }
  if(i=='g'){
    return 7;
  }
  if(i=='h'){
    return 8;
  }
  if(i=='i'){
    return 9;
  }
  if(i=='j'){
    return 10;
  }
  if(i=='k'){
    return 11;
  }
  if(i=='l'){
    return 12;
  }
  if(i=='m'){
    return 13;
  }
  if(i=='n'){
    return 14;
  }
  if(i=='o'){
    return 15;
  }
  if(i=='p'){
    return 16;
  }
  if(i=='q'){
    return 17;
  }
  if(i=='r'){
    return 18;
  }
  if(i=='s'){
    return 19;
  }
  if(i=='t'){
    return 20;
  }
  if(i=='u'){
    return 21;
  }
  if(i=='v'){
    return 22;
  }
  if(i=='w'){
    return 23;
  }
  if(i=='x'){
    return 24;
  }
  if(i=='y'){
    return 25;
  }
  if(i=='z'){
    return 26;
  }
  return 100;
  
}




int main() {
  long N;
  cin>>N;
  int x=-100;
  for(int i=1;i<(int)sqrt(N);i++){
    if(N%i==0){
      x=i;
    }
  }
  int y=N/x;
  int max=0;
  int xx=0;
  for(int i=0;x>0;i++){
    x/=10;
    max++;
  }
  for(int i=0;y>0;i++){
    y/=10;
    xx++;
  }
  if(xx>max){
    max=xx;
  }
  cout<<max<<endl;

  
  


  

  




  
  
}

  

  

Compiler output:
a.cc: In function 'int main()':
a.cc:119:22: error: 'sqrt' was not declared in this scope
  119 |   for(int i=1;i<(int)sqrt(N);i++){
      |                      ^~~~
Language: C++

#include<stdio.h>
#include<iostream>
#include<algorithm>
#include<cstdio>
#include<string>
#include<vector>
typedef long long ll;
using namespace std;
const int wa=1e9+7;
ll N;
int main(void) {
	cin >> N;
	int mi = 10;
	for (int i = 1; i <= (int)sqrt(N); i++) {
		if (N%i != 0)continue;
		ll u = N / i;
		int k = 0;
		while(u > 0) {
			k++;
			u /= 10;
		}
		mi = min(mi, k);
	}
	cout << mi << endl;
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:35: error: 'sqrt' was not declared in this scope
   14 |         for (int i = 1; i <= (int)sqrt(N); i++) {
      |                                   ^~~~
Language: C++

#include<cstdio>
#include<cstring>
#include<iostream>
#include<algorithm>
using namespace std;
long long int n;
int main(){
    cin>>n;
    for(int i=sqrt(n);i>=1;i--)
    {
        if(n%i==0){
            int t=i,l=n/i;
            int s=1;
            while(l>=10){
                s++;
                l/=10;
            }
        cout<<s;
        return 0;
        }
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:15: error: 'sqrt' was not declared in this scope
    9 |     for(int i=sqrt(n);i>=1;i--)
      |               ^~~~
Language: C++

#include<iostream>
#include<cmath>
using namespace std;
int main()
{
	long long n;
	int m,i,x,j,y;
	cin>>n;
	m=sqrt(n);
	for(i=m;i>=1;i--)if(n%i==0){x=i;break;}
	y=n/i;
	for(i=0;x!=0;i++)x=x/10;
	for(j=0;y!=0;j++)y=y/10;
	cout<<max(i,j)<<ENdl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:25: error: 'ENdl' was not declared in this scope
   14 |         cout<<max(i,j)<<ENdl;
      |                         ^~~~
Language: C++

#include<iostream>
#include<cmath>
using namespace std;
int main()
{
	long long n;
	int m,i,x,j,y;
	cin>>n;
	m=sqrt(n);
	for(i=m;i>=1;i--)if(n%i==0){x=i;break;}
	y=n/i;
	for(i=0;x!=0;i++)x=x/10;
	for(j=0;y!=0;j++)y=y/10;
	cout<<max(i,j)
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:23: error: expected ';' before 'return'
   14 |         cout<<max(i,j)
      |                       ^
      |                       ;
   15 |         return 0;
      |         ~~~~~~
Language: C++

#include<cstdio>
#include<cmath>
using namespace std;

long long x,sum;
int ss;

int main()
{
    scanf("%lld",&x);
    for(int i=sqrt(x);i>0;--i)
        if(x%i==0)
		{
            sum=x/i;
            break;
        }
    while(sum>0)
	{ 
        ++ss;
        sum/=10;
    }
    printf("%d\x",ss);
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:12: error: \x used with no following hex digits
   22 |     printf("%d\x",ss);
      |            ^~~~~~
Language: C++

#include<iostream>
#include<math.h>
using namespace std;
int main()
{
	long long int a,za,shu,s=0;
	cin>>a;
	za=sqrt(a);
	for(int i=za;i>0;--i)
	{
		if(a%i==0)
		{
			shu=n/i;
			break;
		}
	}
	while(shu>0)
	{
		++s;
		shu/=10;
	}
	cout<<s<<endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:29: error: 'n' was not declared in this scope
   13 |                         shu=n/i;
      |                             ^
Language: C++

#include<iostream>
using namespace std;
long long n;
char s[11],s2[11];
int main(){
    cin>>n;
    for(int i=sqrt(n);i>=1;--i)if(n%i==0){
        int i2=n/i;
        sprintf(s,"%d",i);
        sprintf(s2,"%d",i2);
        cout<<max(strlen(s),strlen(s2))<<endl;
        break;
    }
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:15: error: 'sqrt' was not declared in this scope
    7 |     for(int i=sqrt(n);i>=1;--i)if(n%i==0){
      |               ^~~~
a.cc:11:19: error: 'strlen' was not declared in this scope
   11 |         cout<<max(strlen(s),strlen(s2))<<endl;
      |                   ^~~~~~
a.cc:2:1: note: 'strlen' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    1 | #include<iostream>
  +++ |+#include <cstring>
    2 | using namespace std;
Language: C++

#include <iostream>
#include <math.h>
using namespace std;
int F(long long a, long long b) {
	int na = 0,nb = 0;
	do {
		a /= 10;
		na++;
	} while (a > 0);
	do {
		b /= 10;
		nb++;
	} while (b > 0);

	return (na > nb) ? na : nb;
}

int main() {
	
	long long N;
	int n;
	long long min = 20000000000i64;

	cin >> N;

	for (int i = 1;i <= N;i++) {
		for (int j = 1;j < sqrt(N);j++) {
			if (N%j == 0) {
				n=F(j, N / j);
				if (n < min)
					min = n;
			}
		}
	}


	cout << min << endl;
	
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:25: error: unable to find numeric literal operator 'operator""i64'
   22 |         long long min = 20000000000i64;
      |                         ^~~~~~~~~~~~~~
Language: C++

#include <iostream>
#include <algorithm>
#include <map>
#include <vector>
#include <string>

using namespace std;

typedef long long int lli;

// 約数の列挙O(√n)
map<lli, lli> prime_factor(lli n){
  map<lli, lli> res;
  for (lli i = 2; i * i <= n; i++) {
    while (n % i == 0) {
      ++res[i];
      n /= i;
    }
  }
  if (n != 1) res[n] = 1;
  return res;
}

int main(int argc, char const *argv[]) {
  lli n;
  cin >> n;
  vector<lli> pf;
  map<lli,lli> mp = prime_factor(n);
  for (auto x : mp) {
    for (size_t i = 0; i < x.second; i++) {
      pf.push_back(x.first);
    }
  }
  if (pf.size()==1) {
    pf.insert(pf.begin(),1);
  }
  int ans = 1<<10;
  for (size_t i = 0; i < 1<<pf.size(); i++) {
    bitset<64> bs64(i);
    lli a=1, b=1;
    for (int j = 0; j < pf.size(); j++) {
      if (bs64[j]==0) a*=pf[j];
      else b*=pf[j];
    }
    string as=to_string(a), bs=to_string(b);
    if (max(as.length(),bs.length())<ans) ans = max(as.length(),bs.length());
  }

  cout << ans << endl;

  return 0;
}


Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:39:5: error: 'bitset' was not declared in this scope
   39 |     bitset<64> bs64(i);
      |     ^~~~~~
a.cc:5:1: note: 'std::bitset' is defined in header '<bitset>'; this is probably fixable by adding '#include <bitset>'
    4 | #include <vector>
  +++ |+#include <bitset>
    5 | #include <string>
a.cc:39:16: error: 'bs64' was not declared in this scope
   39 |     bitset<64> bs64(i);
      |                ^~~~
Language: C++

#include <bits/stdc++.h>
#define REP(i, n) for(int i = 0;i < n;i++)
#define REPR(i, n) for(int i = n;i >= 0;i--)
#define FOR(i, m, n) for(int i = m;i < n;i++)
#define FORR(i, m, n) for(int i = m;i >= n;i--)
#define SORT(v, n) sort(v, v+n);
#define VSORT(v) sort(v.begin(), v.end());
#define llong long long
#define pb(a) push_back(a)
#define INF 1000000000
using namespace std;
typedef pair<int, int> P;
typedef pair<llong, llong> LP;
typedef pair<int, P> PP;
typedef pair<llong, LP> LPP;

int dy[]={0, 0, 1, -1, 0};
int dx[]={1, -1, 0, 0, 0};

int Digits(int num){
  int cnt = 0;
  while(num > 0){
    num / 10;
    cnt++;
  }
  return cnt;
}

int main(){
    cin.tie(0);
   	ios::sync_with_stdio(false);
    int N;
    cin >> N;
    int A,B;
    min_num;
    for(A = 1;A < sqrt(N);A++){
      for(B = 1;B<sqrt(N);B++){
        if(A * B == N){
          min_num = min(Digits(A),Digits(B));
        }
      }
    }
    cout << min_num << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:35:5: error: 'min_num' was not declared in this scope
   35 |     min_num;
      |     ^~~~~~~
Language: C++

#include <iostream>
#include <algorithm>
#include <string>

constexpr long long INF = 10000000000;
long long N;
double sqr;
long long ans;

int main()
{
	std::cin >> N;

	sqr = std::sqrt(N);
	ans = INF;

	for (long long i = 1; i < sqr; i++) {
		if (N%i == 0) {
			ans = std::min(ans, std::max(i, N / i));
		}
	}

	std::cout << std::to_string(ans).length() << '\n';

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:20: error: 'sqrt' is not a member of 'std'; did you mean 'sort'?
   14 |         sqr = std::sqrt(N);
      |                    ^~~~
      |                    sort
Language: C++

#include<iostream>
using namespace std;
long long int n;
int main()
{
    cin>>n;
    for(int i=sqrt(n);i>=1;i--)
    {
        if(n%i==0)
        {
            int t=i,l=n/i;
            int s=1;
            while(l>=10)
            {
                s++;
                l/=10;
            }
            cout<<s;
            return 0;
        }
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:15: error: 'sqrt' was not declared in this scope
    7 |     for(int i=sqrt(n);i>=1;i--)
      |               ^~~~
Language: C++

#include <iostream>
#include <cmath>

using namespace std;

int main()
{
    long long n; cin >> n;
    int a = 0, b = 0;

    for (int i = sqrt(n); i >= 1; i--) {
        a = i;
        if (n % a == 0) {
            b = n / a;
            break;
        }
    }

    int ret = max(int(log10(a))++, int(log10(b))++);

    cout << ret << endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:19: error: lvalue required as increment operand
   19 |     int ret = max(int(log10(a))++, int(log10(b))++);
      |                   ^~~~~~~~~~~~~
a.cc:19:36: error: lvalue required as increment operand
   19 |     int ret = max(int(log10(a))++, int(log10(b))++);
      |                                    ^~~~~~~~~~~~~
Language: C++

#include<bits/stdc++.h>

using namespace std;

int count_digit(long long n){
  int digit = 0;

  while(n>0){
    tmp/=10;
    digit++;
  };

  return digit;
}

int main(){
  long long n;
  int min;
  cin>>n;
  long long tmp = n;
  min = count_digit(n);

  for(long long i=1;i*i<=n;i++){
    if(n%i!=0)continue;
    long long b = n / i;
    int digit = max(count_digit(i), count_digit(b))
    if(min>digit){
      min = digit;
    }
  }
  cout << min << endl;
}


Compiler output:
a.cc: In function 'int count_digit(long long int)':
a.cc:9:5: error: 'tmp' was not declared in this scope; did you mean 'tm'?
    9 |     tmp/=10;
      |     ^~~
      |     tm
a.cc: In function 'int main()':
a.cc:27:5: error: expected ',' or ';' before 'if'
   27 |     if(min>digit){
      |     ^~
Language: C++

#include<iostream>
#include<string>
#include<algorithm>
#include<vector>
#include<queue>
#include<stack>
#include<cstdlib>
#include<ctime>
using namespace std;
typedef long long ll;
void f(int a,int b) {
	string s = to_string(a);
	string t = to_string(b);
	cout << max(s.size(), t.size()) << endl;
}
int main() {
	int n;
	cin >> n;
	for (int i = sqrt(n);; i++) {
		if (n%i == 0) {
			f(i, n / i);
			return 0;
		}
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:22: error: 'sqrt' was not declared in this scope
   19 |         for (int i = sqrt(n);; i++) {
      |                      ^~~~
Language: C++

#include <iostream>
#include <math.h>
using namespace std;

int main() {
	int n,a,b,c=1;
	cin>>n;
	for(int i=0;i<1000000000){
		if(i*i>=n){
			a=i;
			break;
		}
	}
	for(int i=0;i<a;i++){
		if(n%(i+1)==0){
			b=(i+1);
		}
	}
	for(int i=0;i<10;i++){
		if(b<10*c){
			cout<<(i+1)<<endl;
			break;
		}
	c*=10;	
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:33: error: expected ';' before ')' token
    8 |         for(int i=0;i<1000000000){
      |                                 ^
      |                                 ;
Language: C++

#include <bits/stdc++.h>
using namespace std;
using int=long long;
int divitor(int q){
   int t=0;
    while(q>0){
    q/=10;
    t++;
    }
    return t;
    }

int main()
{
    int n,ans,i;
    cin>>n;
	ans=divitor(n);
    for( i=1;i*i<=n;i++){
      if(n%i==0){
       int s=max(divitor(i),divitor(n/i));
	   ans=min(ans,s);
		
        }
   }
      cout<<ans<<endl;
    return 0;
}


Compiler output:
a.cc:3:7: error: expected nested-name-specifier before 'int'
    3 | using int=long long;
      |       ^~~
Language: C++

#include<iostream>
#include<algorithm>
#include<math.h>
using namespace std;
using ll = long long;

int main() {
	ll n;
	cin >> n;
	ll ans = n/2;
	for (int i = 1;i <= sqrt(n);i++) {
		if (n%i == 0) {
			int j = n / i;
			int a = 0;
			for (int k = 0;k < 11;k++) {
				if (j / 10 == 0) {
					a++;
					ans = min(ans, a);
					break;
				}
				a++;
				j /= 10;
			}
		}
	}
	cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:18:50: error: no matching function for call to 'min(ll&, int&)'
   18 |                                         ans = min(ans, a);
      |                                               ~~~^~~~~~~~
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
a.cc:18:50: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   18 |                                         ans = min(ans, a);
      |                                               ~~~^~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61,
                 from a.cc:2:
/usr/include/c++/14/bits/stl_algo.h:5686:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)'
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note:   template argument deduction/substitution failed:
a.cc:18:50: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   18 |                                         ans = min(ans, a);
      |                                               ~~~^~~~~~~~
Language: C

#include <bits/stdc++.h>
using namespace std;
int main(){
  long long ans=114514,n,tmp;
  string s,t;
  cin >> n;
  for(int i=1;i<=sqrt(n);i++){
    if(n%i==0){
      s=to_string(n/i);
      t=to_string(i);
      if(s.size()>t.size()){
      	tmp=s.size();  
      }else{
        tmp=t.size();
      }
      ans=min(ans,tmp);
    }
  }
  cout << ans << endl;
  return 0;
}

Compiler output:
main.c:1:10: fatal error: bits/stdc++.h: No such file or directory
    1 | #include <bits/stdc++.h>
      |          ^~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <iostream>
#include <algorithm>
#include <cmath>
#include <limits>
#include <vector>
#define MAX 100000000
using namespace std;

int main (void) {
  int n,N;
  cin >> N;
  n=sqrt(N);
  int ans=MAX;
  int b=0;
  int size1=0, size2=0;
  for (int i=1; i<=n; i++) {
    if (N%i==0) {
      b=N/i;
      to_string(i);
      to_string(b);
      size1=i.size();
      size2=b.size();
      size3=max(size1,size2);
      ans=min(ans, size3);
    }
  }
  cout << ans;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:16: warning: ignoring return value of 'std::string std::__cxx11::to_string(int)', declared with attribute 'nodiscard' [-Wunused-result]
   19 |       to_string(i);
      |       ~~~~~~~~~^~~
In file included from /usr/include/c++/14/string:54,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/basic_string.h:4240:3: note: declared here
 4240 |   to_string(int __val)
      |   ^~~~~~~~~
a.cc:20:16: warning: ignoring return value of 'std::string std::__cxx11::to_string(int)', declared with attribute 'nodiscard' [-Wunused-result]
   20 |       to_string(b);
      |       ~~~~~~~~~^~~
/usr/include/c++/14/bits/basic_string.h:4240:3: note: declared here
 4240 |   to_string(int __val)
      |   ^~~~~~~~~
a.cc:21:15: error: request for member 'size' in 'i', which is of non-class type 'int'
   21 |       size1=i.size();
      |               ^~~~
a.cc:22:15: error: request for member 'size' in 'b', which is of non-class type 'int'
   22 |       size2=b.size();
      |               ^~~~
a.cc:23:7: error: 'size3' was not declared in this scope; did you mean 'size2'?
   23 |       size3=max(size1,size2);
      |       ^~~~~
      |       size2
Language: C++

#include<iostream>
#include<math.h>
using namespace std;
int main(){
        ＿int64 n;
        cin>>n;
        int b;
        for(int i =1;i <=sqrt(n);i++){
                if(n%i==0){
                        b=n/i;
                }
        }
        int ans=0;
        for(;b>0;){
                b=b/10;
                ans++;
        }
        cout<<ans;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:9: error: '\U0000ff3fint64' was not declared in this scope
    5 |         ＿int64 n;
      |         ^~~~~~~
a.cc:6:14: error: 'n' was not declared in this scope; did you mean 'yn'?
    6 |         cin>>n;
      |              ^
      |              yn
Language: C++

#include <iostream>
#include <vector>
#include <map>
#include <algorithm>

using namespace std;

int main(){
	long long N;
	cin >> N;
	int max = int(sqrt(N));

	int fmin_other = 1; 
	for (int i = 2; i < max + 1; i++) {
		if (N % i == 0) {
			fmin_other = i;
		}
	}

	int fmin = N / fmin_other;
	int keta = 0;
	for (int i = 1; i < N * 10; i = i * 10) {
		keta++;
		if (fmin / i == 0) {
			cout << keta - 1 << endl;
			break;
		}
	}
	return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:11:23: error: 'sqrt' was not declared in this scope
   11 |         int max = int(sqrt(N));
      |                       ^~~~
Language: C++

#include<iostream>
#include<stdio.h>
#include<algorithm>
#include<string>
#include<cmath>
#include<vector>
#include<functional>
#include<stack>
#include<utility>
#include<map>
#include<queue>

using namespace std;

int main() {
	long long n,fmin=100000000000;
	cin >> n;
	for (long long i = 1; i*i <= n; i++) {
		if (n%i == 0) {
			fmin = min(fmin, max(long long(log10(i))+1, long long(log10(n / i))+1));
		}
	}
	cout << fmin << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:20:46: error: expected primary-expression before 'long'
   20 |                         fmin = min(fmin, max(long long(log10(i))+1, long long(log10(n / i))+1));
      |                                              ^~~~
a.cc:20:69: error: expected primary-expression before 'long'
   20 |                         fmin = min(fmin, max(long long(log10(i))+1, long long(log10(n / i))+1));
      |                                                                     ^~~~
Language: C++

#include <iostream>
#include <cstdio>
#include <algorithm>
#include <cstring>
#include <string>
#include <stack>
#include <queue>
#include <vector>
#include <set>
#include <cmath>
#define FOR(i,a,b) for(int i=a;i<b;i++)
#define MA(i,j) make_pair(i,j)
#define PA pair<int,int>
#define PB push_back
#define PQ priority_queue<int>
#define PGQ priority_queue<int,vector<int>,greater<int> >
#define VE vector<int>
#define VP vector<PA>
#define YES(i) cout<<(i?"YES":"NO")<<endl
#define Yes(i) cout<<(i?"Yes":"No")<<endl
#define MOD 1000000007
#define INF 1000000007
using namespace std;
//
int main(){
  long long N,cnt=0;
  cin>>N;
  for(int i=sqrt(N);i>0;i--){
    if(N%i==0){
      int A=max(i,N/i);
      while(A/10){
        cnt++;
        A/=10;
      }
      cout<<cnt+1<<endl;
      return 0;
    }
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:30:16: error: no matching function for call to 'max(int&, long long int)'
   30 |       int A=max(i,N/i);
      |             ~~~^~~~~~~
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:30:16: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   30 |       int A=max(i,N/i);
      |             ~~~^~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61,
                 from a.cc:3:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:30:16: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   30 |       int A=max(i,N/i);
      |             ~~~^~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;

int main () {

    ll N; cin >> N;
    ll ans = INT_MAX;
    for(int i=2; i*i<=N; i++) {
	if( N%i == 0 ) {
	    ans = min(ans,max(log10(i),log10(N/i)));
	}
    }
    cout << ans << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:22: error: no matching function for call to 'min(ll&, const double&)'
   12 |             ans = min(ans,max(log10(i),log10(N/i)));
      |                   ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
a.cc:12:22: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'double')
   12 |             ans = min(ans,max(log10(i),log10(N/i)));
      |                   ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5686:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)'
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note:   template argument deduction/substitution failed:
a.cc:12:22: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   12 |             ans = min(ans,max(log10(i),log10(N/i)));
      |                   ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Language: C++

#include <iostream>
#include "string.h"
#include <vector>
#include <cstdlib>
#include <cstdio>
#include <cmath>
#include <algorithm>
#include <map>
#include <stack>
#include <queue>
#include <set>

using namespace std;
#define MAX_N 2000000
#define ll long long
ll N;


unsigned long long gcd(unsigned long long a,unsigned long long b){
	if(b == 0) return a;
	return gcd(b,a % b);
}

unsigned long long lcm(unsigned long long a,unsigned long long b){
	if(a == b) return a;
	return  a / gcd(a,b) * b;
}


int main(){
	cin.tie(0);
	ios::sync_with_stdio(false);
	cin >> N;
	int ans = INT_MAX;
	for(ll i = 1LL;i*i <= N;++i){
		if(N % i == 0){
			string aa = to_string(N / i);
			string bb = to_string(i);
			int a = aa.length();
			int b = bb.length();
			ans = min(ans,max(a,b));
			cout << ans << endl;
		}
	}
	cout << ans << endl;



	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:34:19: error: 'INT_MAX' was not declared in this scope
   34 |         int ans = INT_MAX;
      |                   ^~~~~~~
a.cc:12:1: note: 'INT_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
   11 | #include <set>
  +++ |+#include <climits>
   12 |
Language: C++

using namespace std;

size_t max_len(uint64_t a, uint64_t b)
{
  return max(to_string(a).size(), to_string(b).size());
}

int32_t main()
{
  uint64_t N;
  cin >> N;

  uint64_t n = (uint64_t)sqrt(N);

  uint64_t m = 0;
  for (uint64_t i = 1; i <= n; i++) {
    if ((N % i) == 0) {
      m = max(m, max_len(i, N / i));
    }
  }
  cout << m << endl;

  return 0;
}


Compiler output:
a.cc:3:1: error: 'size_t' does not name a type
    3 | size_t max_len(uint64_t a, uint64_t b)
      | ^~~~~~
a.cc:1:1: note: 'size_t' is defined in header '<cstddef>'; this is probably fixable by adding '#include <cstddef>'
  +++ |+#include <cstddef>
    1 | using namespace std;
a.cc:8:1: error: 'int32_t' does not name a type
    8 | int32_t main()
      | ^~~~~~~
a.cc:1:1: note: 'int32_t' is defined in header '<cstdint>'; this is probably fixable by adding '#include <cstdint>'
  +++ |+#include <cstdint>
    1 | using namespace std;
Language: C

#include <stdio.h>
     
int main() {    
  long n, a, b, i, result;
      scanf("%ld", &N);
      for(a = 1; a*a <= n; a++) {
        if(n%a == 0) {
          b = n/a;
          i = 0;
        while(b > 0) {
    	  b /= 10;
          i++;
          }
       if(i < n) {
    	result = i;
          }
        }
      }
      printf("%ld\n", result);
      return 0;
    }

Compiler output:
main.c: In function 'main':
main.c:5:21: error: 'N' undeclared (first use in this function)
    5 |       scanf("%ld", &N);
      |                     ^
main.c:5:21: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include <stdio.h>
//#define BUFSIZE 100

	int f(long int x, long int y);

	int main() {
		long int n, a, b
		int min, r;
		scanf("%ld",&n);
		if(n<1 || n>10000000000){
			printf("error\n");
			return 1;
		}
		a = 1;
		b = n;
		min = f(a,b);
		while(a <= b){
			do{
				a++;
			}while(n % a != 0);
			b = n / a;
			r = f(a,b);
			if(r < min) min = r;
		}
		printf("%d",min);
		return 0;
	}
	
	int f(long int x, long int y){
		/*char buf[BUFSIZE];
		if(x >= y) return sprintf(buf,"%ld",x);
		else return sprintf(buf,"%ld",y);*/
		int c = 0;
		if(x >= y){
			while(x>0){
				x = x / 10;
				c++;
			}
		}
		else{
			while(y>0){
				y = y / 10;
				c++;
			}
		}
		return c;
	}

Compiler output:
main.c: In function 'main':
main.c:8:17: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'int'
    8 |                 int min, r;
      |                 ^~~
main.c:15:17: error: 'b' undeclared (first use in this function)
   15 |                 b = n;
      |                 ^
main.c:15:17: note: each undeclared identifier is reported only once for each function it appears in
main.c:16:17: error: 'min' undeclared (first use in this function); did you mean 'main'?
   16 |                 min = f(a,b);
      |                 ^~~
      |                 main
main.c:22:25: error: 'r' undeclared (first use in this function)
   22 |                         r = f(a,b);
      |                         ^
Language: C

#include <stdio.h>
//#define BUFSIZE 1024

	int f(int x, int y);

	int main() {
		int n, a, b, min, r;
		scanf("%d",&n);
		if(n<1 || n>10000000000){
			printf("error\n");
			return 1;
		}
		a = 1;
		b = n;
		min = f(a,b);
		while(a < b){
			do{
				a++;
			}while(n % a != 0);
			b = n / a;
			r = f(a,b);
			if(r < min) min = r;
		}
		printf("%d",min);
		return 0;
	}
	
	int f(int x, int y){
		/*char buf[BUFSIZE];
		if(x >= y) return sprintf(buf,"%u",x);
		else return sprintf(buf,"%u",y);*/
		int c = 0;
		if(x >= y){
			while(x>0){
				x = x / 10;
				c++;
			}
		}
		else{
			while(y>0){
				y = y / 10;
				c++;
			}
		}
		return c;	

Compiler output:
main.c: In function 'f':
main.c:45:17: error: expected declaration or statement at end of input
   45 |                 return c;
      |                 ^~~~~~
Language: C++

#include <iostream>
#include<sstream>
#include<vector>
#include<iterator>
#include<cmath>
using namespace std;

int main(void)
{
	long long N;
	cin >> N;

	unsigned int ret = to_string(N).size();
	for(long long i=2; i<sqrt(N)+1; i++)
	{
		if(N%i != 0)
			continue;

		ret = min(ret, max(to_string(i).size(), to_string(N/i).size()));
	}

	cout << ret << endl;

	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:19:26: error: no matching function for call to 'min(unsigned int&, const long unsigned int&)'
   19 |                 ret = min(ret, max(to_string(i).size(), to_string(N/i).size()));
      |                       ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
a.cc:19:26: note:   deduced conflicting types for parameter 'const _Tp' ('unsigned int' and 'long unsigned int')
   19 |                 ret = min(ret, max(to_string(i).size(), to_string(N/i).size()));
      |                       ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:   candidate expects 3 arguments, 2 provided
Language: C++

#include <iostream>
#include <string>
#include <algorithm>
#include <cmath>

using namespace std;

int digit (long long a)
{
	int d;

	for(d=0; a; d++){
		a /= 10;
	}

	return d;
}
int main()
{
	long long n;
	cin >> n;
    
    int dig = 0;
	for(long long i=1; i<=sqrt(n)+1; i++){
		if(n % i == 0){
			dig = max(digit(i), digit(n/i));
			ans = min(ans, dig);
		}
	}

	cout << ans << endl;

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:27:25: error: 'ans' was not declared in this scope; did you mean 'abs'?
   27 |                         ans = min(ans, dig);
      |                         ^~~
      |                         abs
a.cc:31:17: error: 'ans' was not declared in this scope; did you mean 'abs'?
   31 |         cout << ans << endl;
      |                 ^~~
      |                 abs
Language: C

#include <stdio.h>
#include <stdlib.h>
#include <math.h>

long int digit(long int num){
    long int dig=0;
    while (num!=0) {
        dig++;
        num/=10;
    }
    return dig;
}

int main()
{
    int j=0;
    long int N,i,flag,a=1,b=1;
    scanf("%ld",&N);
    flag=N;
    for(i=2;i<=(long int)sqrt(N);i++){
        while (flag%i==0) {
            a<b?(a*=i):(b*=i);
            flag/=i;
        }
        if(flag==1) break;
    }
    if(flag==N){
        flag=digit(flag);
        printf("%ld\n",flag);
    }
    else if(flag==1){
        printf("%ld\n",a<b?digit(b):digit(a));
    }
    else{
        if(a<flag&&b<flag){
            a<b?(a*=flag):(b*=flag);
            a*=b;
            b=flag;
        }
        else a<b?(a*=flag):(b*=flag);
        printf("%ld\n",a<b?digit(b):digit(a));
    }
    free(box);
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:43:10: error: 'box' undeclared (first use in this function)
   43 |     free(box);
      |          ^~~
main.c:43:10: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

#include<iostream>
#include<cmath>
#include<algorithm>
#include<string>
using namespace std;

bool IsPrime(long long num)
{
    if (num < 2) return false;
    else if (num == 2) return true;
    else if (num % 2 == 0) return false; // 偶数はあらかじめ除く

    double sqrtNum = sqrt(num);
    for (int i = 3; i <= sqrtNum; i += 2)
    {
        if (num % i == 0)
        {
            // 素数ではない
            return false;
        }
    }
    // 素数である
    return true;
}
int main(){
	long long n;
	cin >> n;
	if(IsPrime(n)==true){
		cout << to_string(n).length() << endl;
	}
	else{
		int max[2];
		for(int i=2; i<=n/2; i++){
			for(int k=1; k<n; k++){
				if(i*k==n){
					max[0]=i;
					max[1]=k;
					break;
				}
			}
		}
		cout << max(to_string(max[0]).length(),to_string(max[1]).length()) << endl;
	}
	

}


Compiler output:
a.cc: In function 'int main()':
a.cc:42:28: error: 'max' cannot be used as a function
   42 |                 cout << max(to_string(max[0]).length(),to_string(max[1]).length()) << endl;
      |                         ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Language: C++

#include<iostream>
#include<cmath>
#include<algorithm>
#include<string>
using namespace std;

bool IsPrime(long long num)
{
    if (num < 2) return false;
    else if (num == 2) return true;
    else if (num % 2 == 0) return false; // 偶数はあらかじめ除く

    double sqrtNum = sqrt(num);
    for (int i = 3; i <= sqrtNum; i += 2)
    {
        if (num % i == 0)
        {
            // 素数ではない
            return false;
        }
    }
    // 素数である
    return true;
}
int main(){
	long long n;
	cin >> n;
	if(IsPrime(n)==true){
		cout << to_string(n).length << endl;
	}
	else{
		int max[2];
		for(int i=2; i<=n/2; i++){
			for(int k=1; k<n; k++){
				if(i*k==n){
					max[0]=i;
					max[1]=k;
					break;
				}
			}
		}
		cout << max(to_string(max[0]).length,to_string(max[1]).length) << endl;
	}
	

}


Compiler output:
a.cc: In function 'int main()':
a.cc:29:22: error: invalid use of non-static member function 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size_type std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::length() const [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>; size_type = long unsigned int]'
   29 |                 cout << to_string(n).length << endl;
      |                 ~~~~~^~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/string:54,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/basic_string.h:1083:7: note: declared here
 1083 |       length() const _GLIBCXX_NOEXCEPT
      |       ^~~~~~
a.cc:42:28: error: 'max' cannot be used as a function
   42 |                 cout << max(to_string(max[0]).length,to_string(max[1]).length) << endl;
      |                         ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Language: Java

import java.util.Scanner;

public class Main2{
	public static void main(String[] args){
	        
	        Scanner sc = new Scanner(System.in);
		
			long n = sc.nextInt();
			double sqrtN = Math.sqrt(n);
			int min = String.valueOf(n).length();

			for(int i=1; i <= sqrtN; i++){
				if(n % i == 0) min = Math.min(min, String.valueOf(n / i).length());
			}
			System.out.println(min);
	}
}

Compiler output:
Main.java:3: error: class Main2 is public, should be declared in a file named Main2.java
public class Main2{
       ^
1 error
Language: C++

#include<iostream>
#include <cstdlib>
#include<list>
#include<stdio.h>
#include<vector>
#include<algorithm>
#include<string>
#include<stack>
using namespace std;
int main() {
	//cout << 1 / 10 << endl;
	long long n; cin >> n; bool zz = false;
	long long mini=100000000;
	long long hh = sqrt(n) + 1;
	for (long long i =hh; i >=1; i--)
	{
		if (n%i==0) {long long count = 0,zz=0;
		long long d = n / i;
		while (d != 0) {
			//cout << d <<"d"<< endl;
				d = d / 10;
				count++;
			}
			long long z = i;
			while (z != 0) {
			//	cout << z << "s" << endl;
				z =z/10; zz++;
			}//cout << count << endl;
			cout << max(zz, count) << endl; zz = true; break;
		}
		if (zz) { break; }
	}
return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:24: error: 'sqrt' was not declared in this scope
   14 |         long long hh = sqrt(n) + 1;
      |                        ^~~~