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

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

int main() {
  std::string str1;
  std::string str2;
  std::string str3;
  cin >> str1;
  str2 = str1;
  str3 = str1;
   str2.erase(str2.begin() + 2);
   str2.erase(str2.begin() + 2);
   str3.erase(str3.begin() + 1);
   str3.erase(str3.begin() + 0);
  
  if (str2 == "00"||str3 == "00") {
    cout << "NA" << endl;
  }
  
  
  int str32;
  str32 = stoi(str3);
  int str21;
  str21 = stoi(str2);
     else if (str32 < 13) {
    cout << "AMBIGUOUS" << endl;
  }
  //MMは12月まで。
   else {
    cout << "YYMM" << endl;
  }
  
}


Compiler output:
a.cc: In function 'int main()':
a.cc:25:6: error: 'else' without a previous 'if'
   25 |      else if (str32 < 13) {
      |      ^~~~
Language: C++

  T = S / 100;
  U = S % 100;
  
  if(T <= 12 && T > 0) {
    A = 1;
  }
  
  if(U <= 12 && U > 0) {
    B = 1;
  }
  
  if(A == 1 && B == 1) {
    cout << 'AMBIGUOUS' << endl;
  }
  
  else if(A == 1 && B == 0){
    cout << 'MMYY' << endl;
  }
  
  else if(A == 0 && B == 1){
    cout << 'YYMM' << endl;
  }
  
  else {
    cout << 'NA' << endl;
  }
}

Compiler output:
a.cc:13:13: warning: multi-character literal with 9 characters exceeds 'int' size of 4 bytes
   13 |     cout << 'AMBIGUOUS' << endl;
      |             ^~~~~~~~~~~
a.cc:17:13: warning: multi-character character constant [-Wmultichar]
   17 |     cout << 'MMYY' << endl;
      |             ^~~~~~
a.cc:21:13: warning: multi-character character constant [-Wmultichar]
   21 |     cout << 'YYMM' << endl;
      |             ^~~~~~
a.cc:25:13: warning: multi-character character constant [-Wmultichar]
   25 |     cout << 'NA' << endl;
      |             ^~~~
a.cc:1:3: error: 'T' does not name a type
    1 |   T = S / 100;
      |   ^
a.cc:2:3: error: 'U' does not name a type
    2 |   U = S % 100;
      |   ^
a.cc:4:3: error: expected unqualified-id before 'if'
    4 |   if(T <= 12 && T > 0) {
      |   ^~
a.cc:8:3: error: expected unqualified-id before 'if'
    8 |   if(U <= 12 && U > 0) {
      |   ^~
a.cc:12:3: error: expected unqualified-id before 'if'
   12 |   if(A == 1 && B == 1) {
      |   ^~
a.cc:16:3: error: expected unqualified-id before 'else'
   16 |   else if(A == 1 && B == 0){
      |   ^~~~
a.cc:20:3: error: expected unqualified-id before 'else'
   20 |   else if(A == 0 && B == 1){
      |   ^~~~
a.cc:24:3: error: expected unqualified-id before 'else'
   24 |   else {
      |   ^~~~
a.cc:27:1: error: expected declaration before '}' token
   27 | }
      | ^
Language: C

#include<stdio.h>

#define A 2

int main(void){

    int S,i,qian,hou;

    scanf("%d",&S);

    qian = (S / 1000) * 10 + (S / 100) % 10;
    hou = S % 100;

    if(qian <= 12 && qian != 0 && hou > 12){
        printf("MMYY");
    }else if(qian > 12  && hou <= 12 && hou != 0){
        printf("YYMM")
    }else if(qian <= 12 && qian != 0 && hou <= 12 && hou != 0){
        printf("AMBIGUOUS");
    }else{
        printf("NA");
    }

    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:17:23: error: expected ';' before '}' token
   17 |         printf("YYMM")
      |                       ^
      |                       ;
   18 |     }else if(qian <= 12 && qian != 0 && hou <= 12 && hou != 0){
      |     ~
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  string S;
  cin >> S;
  int mmyy, yymm;
  if ( S.at(0) == '0' && S.at(1) != '0' ) mmyy++;
  else if ( S.at(0) == '1' && S.at(1) == '0' ) mmyy++;
  else if ( S.at(0) == '1' && S.at(1) == '1' ) mmyy++;
  else if ( S.at(0) == '1' && S.at(1) == '2' ) mmyy++;
  
  if ( S.at(2) == '0' && S.at(3) != '0' ) yymm++;
  else if ( S.at(2) == '1' && S.at(3) == '0' ) yymm++;
  else if ( S.at(2) == '1' && S.at(3) == '1' ) yymm++;
  else if ( S.at(2) == '1' && S.at(3) == '2' ) yymm++;
  
  if ( mmyy == "0" && yymm == "0" ) cout << "NA" << endl;
  else if ( mmyy == "1" && yymm == "0" ) cout << "MMYY" << endl;
  else if ( mmyy == "0" && yymm == "1" ) cout << "YYMM" << endl;
  else if ( mmyy == "0" && yymm == "0" ) cout << "AMBIGUOUS" << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:13: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   18 |   if ( mmyy == "0" && yymm == "0" ) cout << "NA" << endl;
      |        ~~~~~^~~~~~
a.cc:18:28: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   18 |   if ( mmyy == "0" && yymm == "0" ) cout << "NA" << endl;
      |                       ~~~~~^~~~~~
a.cc:19:18: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   19 |   else if ( mmyy == "1" && yymm == "0" ) cout << "MMYY" << endl;
      |             ~~~~~^~~~~~
a.cc:19:33: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   19 |   else if ( mmyy == "1" && yymm == "0" ) cout << "MMYY" << endl;
      |                            ~~~~~^~~~~~
a.cc:20:18: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   20 |   else if ( mmyy == "0" && yymm == "1" ) cout << "YYMM" << endl;
      |             ~~~~~^~~~~~
a.cc:20:33: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   20 |   else if ( mmyy == "0" && yymm == "1" ) cout << "YYMM" << endl;
      |                            ~~~~~^~~~~~
a.cc:21:18: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   21 |   else if ( mmyy == "0" && yymm == "0" ) cout << "AMBIGUOUS" << endl;
      |             ~~~~~^~~~~~
a.cc:21:33: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   21 |   else if ( mmyy == "0" && yymm == "0" ) cout << "AMBIGUOUS" << endl;
      |                            ~~~~~^~~~~~
Language: C++

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

int main() {
  std::string str1;
  std::string str2;
  std::string str3;
  cin >> str1;
  str2 = str1;
  str3 = str1;
   str2.erase(str2.begin() + 2);
   str2.erase(str2.begin() + 2);
   str3.erase(str3.begin() + 1);
   str3.erase(str3.begin() + 0);
  
  if (str2 == "00"||str3 == "00") {
    cout << "NA" << endl;
  }
  
  
  int str32;
  str32 = stoi(str3);
  int str21;
  str21 = stoi(str2);
    if else(str32 < 13) {
    cout << "AMBIGUOUS" << endl;
  }
  //MMは12月まで。
   if else{
    cout << "YYMM" << endl;
  }
  
}


Compiler output:
a.cc: In function 'int main()':
a.cc:25:8: error: expected '(' before 'else'
   25 |     if else(str32 < 13) {
      |        ^~~~
      |        (
a.cc:29:7: error: expected '(' before 'else'
   29 |    if else{
      |       ^~~~
      |       (
Language: C++

int main(){
    char n[4];
    cin >> n;
    int period[4] = {n[0] - '0', n[1] - '0', n[2] - '0', n[3] - '0'};
    int front = (10 * period[0]) + period[1];
    int back = (10 * period[2]) + period[3];
    if(front > 12 && back > 12){
        cout << "NA" << endl;
    }else if(front == 0 && back >12){
        cout << "NA" << endl;
    }else if(front > 12 && back ==0){
        cout << "NA" << endl;
    }else if(front ==0 && back ==0){
        cout << "NA" << endl;
    }else if(front <=12 && back > 12){
        cout << "MMYY";
    }else if(front > 12 && back <= 12){
        cout << "YYMM";
    }else{
        cout << "AMBIGUOUS";
    }

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:5: error: 'cin' was not declared in this scope
    3 |     cin >> n;
      |     ^~~
a.cc:8:9: error: 'cout' was not declared in this scope
    8 |         cout << "NA" << endl;
      |         ^~~~
a.cc:8:25: error: 'endl' was not declared in this scope
    8 |         cout << "NA" << endl;
      |                         ^~~~
a.cc:10:9: error: 'cout' was not declared in this scope
   10 |         cout << "NA" << endl;
      |         ^~~~
a.cc:10:25: error: 'endl' was not declared in this scope
   10 |         cout << "NA" << endl;
      |                         ^~~~
a.cc:12:9: error: 'cout' was not declared in this scope
   12 |         cout << "NA" << endl;
      |         ^~~~
a.cc:12:25: error: 'endl' was not declared in this scope
   12 |         cout << "NA" << endl;
      |                         ^~~~
a.cc:14:9: error: 'cout' was not declared in this scope
   14 |         cout << "NA" << endl;
      |         ^~~~
a.cc:14:25: error: 'endl' was not declared in this scope
   14 |         cout << "NA" << endl;
      |                         ^~~~
a.cc:16:9: error: 'cout' was not declared in this scope
   16 |         cout << "MMYY";
      |         ^~~~
a.cc:18:9: error: 'cout' was not declared in this scope
   18 |         cout << "YYMM";
      |         ^~~~
a.cc:20:9: error: 'cout' was not declared in this scope
   20 |         cout << "AMBIGUOUS";
      |         ^~~~
Language: C++

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

int main (void){
    int i, j, k;
    int S, tmp1, tmp2, ans; cin >> S;
    tmp1 = "00";
    tmp2 = "00";

    for(i = 0; i < 2; i++){
        tmp1.at(i) = S.at(i);
        tmp2.at(i) = S.at(i+2);
    }
    
    j = atoi(tmp1.c_str());
    k = atoi(tmp2.c_str());

    if(k >= 1 && k <= 12 && j >= 1 && j <= 12) {
        ans = "AMBIGUOUS";
    }else if(k > 12 && j >=1 && j <= 12) {
        ans = "MMYY";
    }else if(k >= 1 && k <= 12 && j > 12) {
        ans = "YYMM";
    }else {
        ans = "NA";
    }

    cout << ans << endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:12: error: invalid conversion from 'const char*' to 'int' [-fpermissive]
    7 |     tmp1 = "00";
      |            ^~~~
      |            |
      |            const char*
a.cc:8:12: error: invalid conversion from 'const char*' to 'int' [-fpermissive]
    8 |     tmp2 = "00";
      |            ^~~~
      |            |
      |            const char*
a.cc:11:14: error: request for member 'at' in 'tmp1', which is of non-class type 'int'
   11 |         tmp1.at(i) = S.at(i);
      |              ^~
a.cc:11:24: error: request for member 'at' in 'S', which is of non-class type 'int'
   11 |         tmp1.at(i) = S.at(i);
      |                        ^~
a.cc:12:14: error: request for member 'at' in 'tmp2', which is of non-class type 'int'
   12 |         tmp2.at(i) = S.at(i+2);
      |              ^~
a.cc:12:24: error: request for member 'at' in 'S', which is of non-class type 'int'
   12 |         tmp2.at(i) = S.at(i+2);
      |                        ^~
a.cc:15:19: error: request for member 'c_str' in 'tmp1', which is of non-class type 'int'
   15 |     j = atoi(tmp1.c_str());
      |                   ^~~~~
a.cc:16:19: error: request for member 'c_str' in 'tmp2', which is of non-class type 'int'
   16 |     k = atoi(tmp2.c_str());
      |                   ^~~~~
a.cc:19:15: error: invalid conversion from 'const char*' to 'int' [-fpermissive]
   19 |         ans = "AMBIGUOUS";
      |               ^~~~~~~~~~~
      |               |
      |               const char*
a.cc:21:15: error: invalid conversion from 'const char*' to 'int' [-fpermissive]
   21 |         ans = "MMYY";
      |               ^~~~~~
      |               |
      |               const char*
a.cc:23:15: error: invalid conversion from 'const char*' to 'int' [-fpermissive]
   23 |         ans = "YYMM";
      |               ^~~~~~
      |               |
      |               const char*
a.cc:25:15: error: invalid conversion from 'const char*' to 'int' [-fpermissive]
   25 |         ans = "NA";
      |               ^~~~
      |               |
      |               const char*
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define ALL(x) x.begin(),x.end()
#define ll long long
//map<key,value>

int main(){
  string s;
  cin >> s;
  if((s[0]-'0')*10 + (s[1]-'0') > 12){
    if((s[2]-'0')*10 + (s[3]-'0') <= 12 && (s[2]-'0')*10 + (s[3]-'0') >= 1 ){
      cout << "YYMM";return 0;
    }
    else{
      cout << "NA";return 0;
    }
  }
  else if((s[0]-'0')*10 + (s[1]-'0') == 0){
    cout << "NA"return 0;
  }
  else {
    if((s[2]-'0')*10 + (s[3]-'0') <= 12 && (s[2]-'0')*10 + (s[3]-'0') >= 1){
      cout << "AMBIGUOUS";return 0;
    }
    else if((s[2]-'0')*10 + (s[3]-'0') == 0){
      cout << "NA";return 0;
    }
    else{
      cout << "MMYY";return 0;
    }
  }

  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:19:13: error: unable to find string literal operator 'operator""return' with 'const char [3]', 'long unsigned int' arguments
   19 |     cout << "NA"return 0;
      |             ^~~~~~~~~~
Language: C++

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

int main() {
  std::string str1;
  std::string str2;
  std::string str3;
  cin >> str1;
  str2 = str1;
  str3 = str1;
   str2.erase(str2.begin() + 2);
   str2.erase(str2.begin() + 2);
   str3.erase(str3.begin() + 1);
   str3.erase(str3.begin() + 0);
  
  if (str2 == "00"||str3 == "00") {
    cout << "NA" << endl;
  }
  
  
  int str32;
  str32 = stoi(str3);
  int str21;
  str21 = stoi(str2);
    if else(str32 < 13) {
    cout << "AMBIGUOUS" << endl;
  }
  //MMは12月まで。
  else{
    cout << "YYMM" << endl;
  }
  
}


Compiler output:
a.cc: In function 'int main()':
a.cc:25:8: error: expected '(' before 'else'
   25 |     if else(str32 < 13) {
      |        ^~~~
      |        (
a.cc:29:3: error: 'else' without a previous 'if'
   29 |   else{
      |   ^~~~
Language: C

#include<stdio.h>

int main(void){
    int S;

    int i=0;
    scanf("%d",&S;

    int ans[2]={0,0};
    int b[2];

    b[0]=S/100;
    b[1]=S%100;

    for(i=0;i++;i<=1){
        if(b[i]<=12&&b[i]>=1){
            ans[i]=1;
        }
    }

    if(ans[0]==0&&ans[1]==0){
        printf("NA\n");
    }else if(ans[0]==0&&ans[1]==1){
        printf("YYMM");
    }else if(ans[0]==1&&ans[1]==0){
        printf("MMYY");
    }else if(ans[0]==1&&ans[1]==1){
        printf("AMBIGUOUS\n");
    }

    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:18: error: expected ')' before ';' token
    7 |     scanf("%d",&S;
      |          ~       ^
      |                  )
main.c:31:14: error: expected ';' before '}' token
   31 |     return 0;
      |              ^
      |              ;
   32 | }
      | ~
Language: C++

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

int main(){
  int S;
  cin >> S;
  string result;
  int up = S/100;
  int down = S % 100;
  if((up >= 13) && (down >= 13)) result = "NA";
  else if((up >= 13) && (1 <= down && down <=12)) result = "YYMM";
  else if(up >= 13) && (down == 0)) result = "NA";
  else if((1 <= up && up <= 12) && (13 <= down)) result = "MMYY";
  else if((1 <= up && up <= 12) && (1 <= down && down <=12)) result == "AMBIGUOUS";
  else if((1 <= up && up <= 12) && (down == 0)) result = "MMYY";
  else if((up == 0) && (down >= 13)) result == "NA";
  else if((up == 0) && (1 <= down && down <=12)) result ="YYMM";
  else if((up == 0) && (down == 0)) result = "NA";
  cout << result << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:24: error: expected identifier before '(' token
   13 |   else if(up >= 13) && (down == 0)) result = "NA";
      |                        ^
a.cc:15:69: warning: ignoring return value of 'bool std::operator==(const __cxx11::basic_string<_CharT, _Traits, _Allocator>&, const _CharT*) [with _CharT = char; _Traits = char_traits<char>; _Alloc = allocator<char>]', declared with attribute 'nodiscard' [-Wunused-result]
   15 |   else if((1 <= up && up <= 12) && (1 <= down && down <=12)) result == "AMBIGUOUS";
      |                                                              ~~~~~~~^~~~~~~~~~~~~~
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:3772:5: note: declared here
 3772 |     operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
a.cc:17:45: warning: ignoring return value of 'bool std::operator==(const __cxx11::basic_string<_CharT, _Traits, _Allocator>&, const _CharT*) [with _CharT = char; _Traits = char_traits<char>; _Alloc = allocator<char>]', declared with attribute 'nodiscard' [-Wunused-result]
   17 |   else if((up == 0) && (down >= 13)) result == "NA";
      |                                      ~~~~~~~^~~~~~~
/usr/include/c++/14/bits/basic_string.h:3772:5: note: declared here
 3772 |     operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
Language: C++

#include<iostream>
#include<algorithm>
#include<string>
#include<vector>
using namespace std;
int main() {
int s;cin>>s;
  int m=s,l;
  
  int s1,s2;
  l=s/100;
  s1=l;
  s2=s-s1*100;
  else if(1000>s&&s>99)
  {
  for(int i=0;i<3;i++)
  {
    if(i==0)
    {
      s2+=s%10;
      s=s/10;
    }
    else if(i==1)
    {
      s2+=s%10*10;
    }
  }
  }
   else if(s<100)
  {
  s1=0;
     s2=s;
  
  }
    cout<<s1<<endl;
  cout<<s2<<endl;
  if(s1>13 && s2>13)
  {
    cout<<"NA"<<endl;
  }
    if(s1==0 && s2>13)
  {
    cout<<"NA"<<endl;
  }
    if(s1>13 && s2==0)
  {
    cout<<"NA"<<endl;
  }
    if(s1==0 && s2==0)
  {
    cout<<"NA"<<endl;
  }
  
  else if(s1<13 && s2<13&&s1!=0&&s2!=0)
  {
    cout<<"AMBIGUOUS"<<endl;
  }
  else if(s1<13 && s2>13&&s1!=0)
  {
    cout<<"MMYY"<<endl;
  }
   else if(s1<13 && s2==0&&s1!=0)
  {
    cout<<"MMYY"<<endl;
  }
  else if(s1>13 && s2<13&&s2!=0)
  {
    cout<<"YYMM"<<endl;
  }
    else if(s1==0 && s2<13&&s2!=0)
  {
    cout<<"YYMM"<<endl;
  }
  
  
}
    
    
    
  


Compiler output:
a.cc: In function 'int main()':
a.cc:14:3: error: 'else' without a previous 'if'
   14 |   else if(1000>s&&s>99)
      |   ^~~~
Language: C++

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

int main() {
  int i;
  cin >> i ;
  int a;
  int b;
  int c;
  int d;
  a = i / 1000;
  b = (i - ( a * 1000 ) ) / 100 ;
  c = (i - ( a * 1000  + b * 100) ) / 10 ;
  d = i % 10;
  if(a >= 1 && b >= 3 ){
    if(c >= 1 && c >= 3 ){
      cout << "NA" << endl;
    }
    else if(c == 1 && d <= 2){
    cout << "YYMM" << endl;
    }
    else if(c == 0 && d >= 1){
    cout << "YYMM" << endl;
    }
  }
   if(a == 1 && b <= 2){
     if(c == 1 && d <= 2){
    cout << "AMBIGUOUS" << endl;
    }
    else if(c == 0 && d >= 1){
    cout << "AMBIGUOUS" << endl;
    }
   if(a >= 1 && b >= 3 ){
    cout << "MMYY" << endl;
      }
   if(a == 0 && b >= 1){
    cout << "YYMM" << endl;
   }
}
  if(a == 0 && b == 0){
    
  if(c == 0 && d >= 1 ){
    cout << "YYMM" << endl;
    else if(c == 1 && d <= 2){
    cout << "YYMM" << endl;
    }
  }
    else cout << "NA" << endl;
  }
  if(c == 0 && d == 0){
    
  if(a == 0 && b >= 1 ){
    cout << "MMYY" << endl;
    else if(a == 1 && b <= 2){
    cout << "MMYY" << endl;
    }
  }
    else cout << "NA" << endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:44:5: error: expected '}' before 'else'
   44 |     else if(c == 1 && d <= 2){
      |     ^~~~
a.cc:42:24: note: to match this '{'
   42 |   if(c == 0 && d >= 1 ){
      |                        ^
a.cc: At global scope:
a.cc:50:3: error: expected unqualified-id before 'if'
   50 |   if(c == 0 && d == 0){
      |   ^~
a.cc:60:1: error: expected declaration before '}' token
   60 | }
      | ^
Language: C++

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

int main(){
  int S;
  cin >> S;
  string result;
  int up = S/100;
  cout << up << endl;
  int down = S % 100;
  cout << down << endl;
  if((up >= 13) && (down >= 13)) result = "NA";
  else if((up >= 13) && (1 <= down && down <=12)) result = "YYMM";
  else if(up >= 13) && (down == 0)) result = "NA";
  else if((1 <= up && up <= 12) && (13 <= down)) result = "MMYY";
  else if((1 <= up && up <= 12) && (1 <= down && down <=12)) result == "AMBIGUOUS";
  else if((1 <= up && up <= 12) && (down == 0)) result = "MMYY";
  else if((up == 0) && (down >= 13)) result == "NA";
  else if((up == 0) && (1 <= down && down <=12)) result ="YYMM";
  else if((up == 0) && (down == 0)) result = "NA";
  cout << result << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:24: error: expected identifier before '(' token
   15 |   else if(up >= 13) && (down == 0)) result = "NA";
      |                        ^
a.cc:17:69: warning: ignoring return value of 'bool std::operator==(const __cxx11::basic_string<_CharT, _Traits, _Allocator>&, const _CharT*) [with _CharT = char; _Traits = char_traits<char>; _Alloc = allocator<char>]', declared with attribute 'nodiscard' [-Wunused-result]
   17 |   else if((1 <= up && up <= 12) && (1 <= down && down <=12)) result == "AMBIGUOUS";
      |                                                              ~~~~~~~^~~~~~~~~~~~~~
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:3772:5: note: declared here
 3772 |     operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
a.cc:19:45: warning: ignoring return value of 'bool std::operator==(const __cxx11::basic_string<_CharT, _Traits, _Allocator>&, const _CharT*) [with _CharT = char; _Traits = char_traits<char>; _Alloc = allocator<char>]', declared with attribute 'nodiscard' [-Wunused-result]
   19 |   else if((up == 0) && (down >= 13)) result == "NA";
      |                                      ~~~~~~~^~~~~~~
/usr/include/c++/14/bits/basic_string.h:3772:5: note: declared here
 3772 |     operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
Language: C++

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

int main()
{
    string data_f, data_b;

    cin >> data_f;
    data_b += data_f[2];
    data_b += data_f[3];
    data_f.pop_back();
    data_f.pop_back();

    int num_f = stoi(data_f);
    int num_b = stoi(data_b);

    bool b = false, f = false, w = ;
    if(num_f <= 12 && num_f > 0)
    { 
        f = true;
    }
    if(num_b <= 12 && num_b > 0)
    {
        b = true;
    }
    if(b && f) w = true;


    if(w){
        cout << "AMBIGUOUS" << endl;
        return 0;
    }
    else if(f)
    {
        cout << "MMYY" << endl;
        return 0;
    }
    else if(b)
    {
        cout << "YYMM" << endl;
        return 0;
    }
    else{
         cout << "NA" << endl;
         return 0;
    }


}

Compiler output:
a.cc: In function 'int main()':
a.cc:20:36: error: expected primary-expression before ';' token
   20 |     bool b = false, f = false, w = ;
      |                                    ^
Language: C++

#include <iostream>
#include <string>
using namespace std;
 
int main(){
  char S[4];
  cin >> S;
  
  string c01 = S[0]+S[1];
  string c23 = S[2]+S[3];
  
  int i01 = stoi(c01);
  int i23 = stoi(c23);
  
  if(i01 >= 1 && i01 <=12 && i23 >= 1 && i23 <=12) {
    cout << "AMBIGUOUS" << endl;
  }else if(i01 >= 0 && i23 >= 1 && i23 <=12) {
    cout << "YYMM" << endl;
  }else if( i01 >= 1 && i01 <=12 && i23 >= 0) {
    cout << "MMYY" << endl;
  }else{
    cout << "NA" << endl;
  }
    
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:20: error: conversion from 'int' to non-scalar type 'std::string' {aka 'std::__cxx11::basic_string<char>'} requested
    9 |   string c01 = S[0]+S[1];
      |                ~~~~^~~~~
a.cc:10:20: error: conversion from 'int' to non-scalar type 'std::string' {aka 'std::__cxx11::basic_string<char>'} requested
   10 |   string c23 = S[2]+S[3];
      |                ~~~~^~~~~
Language: Java

import java.util.*;

public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int k = sc.nextInt();
		double result = 0;
		for (int i= 1 ; i <= n ; i++) {
			double a = i;
			double num = 0;
			while(a <= k) {
				a = a * 2;
				num++;
			}
			
			double add = (Math.pow(0.5, num)) * (1/(double)n);
			result += add;
		}
		System.out.println(result);
	}


Compiler output:
Main.java:23: error: reached end of file while parsing
	}
	 ^
1 error
Language: C++

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

int main() {
  std::string str1;
  std::string str2;
  std::string str3;
  cin >> str1;
  str2 = str1;
  str3 = str1;
   str2.erase(str2.begin() + 2);
   str2.erase(str2.begin() + 2);
   str3.erase(str3.begin() + 1);
   str3.erase(str3.begin() + 0);
    cout << str2  << str3 << endl;
  
  if (str2 == "00"||str3 == "00") {
    cout << "NA" << endl;
  }
  
  
  int str32;
  str32 = stoi(str3);
  int str21
  str21 = stoi(str2);
    if (str32 < 13) {
    cout << "AMBIGUOUS" << endl;
  }
  //MMは12月まで。
  else{
    cout << "YYMM" << endl;
  }
  
}


Compiler output:
a.cc: In function 'int main()':
a.cc:25:3: error: expected initializer before 'str21'
   25 |   str21 = stoi(str2);
      |   ^~~~~
Language: C++

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

int main()
{
  int S[4];
  for(int i=0;i<4;i++)
    cin >> S[i];
  if((S[0]>1) || (S[0]==1 && S[1]>2)) && ((S[2]==1 && S[3]<3) || (S[2]==0 && S[3]!=0)))
    cout << "YYMM" << endl;
  else if((S[2]>1) || (S[2]==1 && S[3]>2)) && ((S[0]==1 && S[1]<3) || (S[0]==0 && S[1]!=0)))
    cout << "MMYY" << endl;
  else if(((S[0]==1 && S[1]<3) || (S[0]==0 && S[1]!=0)) && ((S[2]==1 && S[3]<3) || (S[2]==0 && S[3]!=0)))
    cout << "AMBIGUOUS" << endl;
  else
    cout << "NA" << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:42: error: expected identifier before '(' token
    9 |   if((S[0]>1) || (S[0]==1 && S[1]>2)) && ((S[2]==1 && S[3]<3) || (S[2]==0 && S[3]!=0)))
      |                                          ^
a.cc:11:47: error: expected identifier before '(' token
   11 |   else if((S[2]>1) || (S[2]==1 && S[3]>2)) && ((S[0]==1 && S[1]<3) || (S[0]==0 && S[1]!=0)))
      |                                               ^
Language: C++

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

int main() {
  int S; cin >> S;
  int f = S / 100;
  int s = S % 100;
  
  cout << f << s << endl;
  
  if (1<=s && s<=12 && 1<=f && <=12) {
    cout << "AMBIGUOUS" << endl;
  }else if (1<=f && f<=12 && 0<=s && s<=99) {
    cout << "MMYY" << endl;
  }else if (0<= f&& f<=99 && 1<=s && s<=12) {
    cout << "YYMM"<< endl;
  }else {
    cout << "NA" << endl;
  }
}
  
 

  

Compiler output:
a.cc: In function 'int main()':
a.cc:11:32: error: expected primary-expression before '<=' token
   11 |   if (1<=s && s<=12 && 1<=f && <=12) {
      |                                ^~
Language: C++

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

int main(){
  int S;
  cin>>S;
  int B=S/100;
  int A=S-S/100;
  if(B!=0&&A!=0){
    if(B>12&&A<13){
      cout<<"YYMM"<<endl;
    }
    if(B<13&&A>12){
      cout<<"MMYY"<<endl;
    }
    if(B<13&&A<13){
      cout<<"AMBIGUOUS"<<endl;
    }
  }
  if(B==0%%A<13){
    cout<<"YYMM"<<endl;
  }
  if(B<13&&A==0){
    cout<<"MMYY"<<endl;
  }
  if(B>12&&A==0){
    cout<<"NA"<<endl;
  }
  if(B==0&&A>12){
    cout<<"NA"<<endl;
  }
  if(B>12&&A>12){
    cout<<"NA"<<endl;
  }
  if(B==0&&A==0){
    cout<<"NA"<<endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:20:11: error: expected primary-expression before '%' token
   20 |   if(B==0%%A<13){
      |           ^
Language: Java

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		String S = scanner.next();
		String t = S.substring(0, 2);
		String k = S.substring(2);
		int a = Integer.parseInt(t);
		int b = Integer.parseInt(k);
		String s;
		if ((1 <= a && a <= 12) && (1 <= b && b <= 12)) {
			s = "AMBIGUOUS";
		} else if ((1 <= a && a <= 12) && (13 <= b||b==0)) {
			s = "mmyy";
		} else if ((a >= 13||a==0) && (1 <= b && b <= 12)) {
			s = "yymm";
		} else {
			s = "NA";
		}
		System.out.println(s);
	}

Compiler output:
Main.java:23: error: reached end of file while parsing
	}
	 ^
1 error
Language: Java

import java.util.*;

public class Main{
	public static void main(String[] args){
    	Scanner scan = new Scanner(System.in);
      	int N = scan.nextInt();
      	int upper  = N / 100;
      	int down = N % 100;
      	boolean tsuki, nen
      	if(down == 0 || down > 13){//tsuki ga ato janai
          	if(upper == 0 || upper > 13){
        		System.out.print("NA");
            }
          	else {
            	System.out.print("MMYY");
            }
        }
      	if(0 < down && down < 13){
        	if(0 < upper && upper < 13){
            	System.out.print("AMBIGUOUS");
            }
          	else {
            	System.out.print("YYMM");
            }
        }
      	
    }

}

Compiler output:
Main.java:9: error: ';' expected
      	boolean tsuki, nen
      	                  ^
1 error
Language: C++

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

int main(){
  char S[];
  cin >> S;
  
  string c01 = S[0]+S[1];
  string c23 = S[2]+S[3];
  
  int i01 = stoi(c01);
  int i23 = stoi(c23);
  
  if(i01 >= 1 && i01 <=12 && i23 >= 1 && i23 <=12) {
    cout << "AMBIGUOUS" << endl;
  }else if(i01 >= 0 && i23 >= 1 && i23 <=12) {
    cout << "YYMM" << endl;
  }else if( i01 >= 1 && i01 <=12 && i23 >= 0) {
    cout << "MMYY" << endl;
  }else{
    cout << "NA" << endl;
  }
    
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:8: error: storage size of 'S' isn't known
    6 |   char S[];
      |        ^
Language: C++

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


//YYMM, MMYY
bool poss[2] = {false};
string s;

int main(){
ios_base::sync_with_stdio(false);
cin >> s;

int p1 = stoi(string() + s[0] + s[1]);
int p2 = stoi(string() + s[2] + s[3]);

if((p1 == 0 || p2 == 0) || ((p1 > 12 && p2 >= 31) || (p1 >= 31 && p2 > 12) || (p1 > 12 && p2 > 12))) cout << "NA";
else if ((p1 <= 12 && p2 <= 31) && (p1 <= 31 && p2 <= 12)) cout << "AMBIGUOUS";
else if ((p1 <= 12 || p2 <= 12)) && (p1 > 12 || p2 > 12)) cout << "MMYY";
else cout << "YYMM";

cin >> s;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:37: error: expected identifier before '(' token
   18 | else if ((p1 <= 12 || p2 <= 12)) && (p1 > 12 || p2 > 12)) cout << "MMYY";
      |                                     ^
Language: C++

#include<cstdio>
#include<cstring>
#include<algorithm>
#include<cmath>
#include<iostream>
using namespace std;
int main()
{
	char s[5];
	gets_s(s);
	int S[5],k;
	for (int i = 0; i < 4; i++)
	{
		k = (int)s[i] - 48;
		S[i] = k;
	}
	
	if (1 <= S[0] * 10 + S[1]&& S[0] * 10 + S[1] <= 12 && 1 <= S[2] * 10 + S[3])
		cout << "AMBIGUOUS";
	else if (1 <= S[0] * 10 + S[1] && S[0] * 10 + S[1] <= 12 && S[2] * 10 + S[3] > 12)
		cout << "MMYY";
	else if ((S[0] * 10 + S[1] > 12) &&  (S[2] * 10 + S[3]>=1) && (S[2] * 10 + S[3] <= 12))
		cout << "YYMM";
	else
		cout << "NA";
	return 0;
	
	
}






Compiler output:
a.cc: In function 'int main()':
a.cc:10:9: error: 'gets_s' was not declared in this scope
   10 |         gets_s(s);
      |         ^~~~~~
Language: C

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

int main(void){
    char s[4];

    scanf("%s",s);
    if(s[0] == '0'){
        if(s[1] == '0'){
            printf("NA");
        }else{
            if(s[2] == '0'){
                if(s[3] != '0') printf("AMBIGUOUS");
                else printf("NA");
            }else if(s[2] == '1'){
                if((int)s[3] <= 50){
                    printf("AMBIGUOUS");
                }else{
                    printf("MMYY");
                }
            }else{
                printf("MMYY");
            }
        }    
    }else if(s[0] == '1'){
        if((int)(s[1]) <= 50){
            if(s[2] == '0'){
                if(s[3] != '0') printf("AMBIGUOUS");
                else printf("NA");
            }else if(s[2] == '1' && (int)(s[3]) <= 50){
                printf("AMBIGUOUS");
            }else{
                printf("MMYY");
            }
        }else{
            if(s[2] == '0'){
                if(s[3] != '0') printf("YYMM");
                else printf("NA");
            }else if(s[2] == '1'){
                if((int)s[3] <= 50) printf("YYMM")
                else printf("NA");
            }else{
                printf("NA");
            }
        }
    }else{
        if(s[2] == '0'){
            if(s[3] != '0') printf("YYMM");
            else printf("NA");
        }else if(s[2] == '1'){
            if((int)(s[3]) <= 50) printf("YYMM");
            else printf("NA");
        }else{
            printf("NA");
        }    
    }
    printf("\n");
    
}

Compiler output:
main.c: In function 'main':
main.c:40:51: error: expected ';' before 'else'
   40 |                 if((int)s[3] <= 50) printf("YYMM")
      |                                                   ^
      |                                                   ;
   41 |                 else printf("NA");
      |                 ~~~~
Language: C++

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

int main() {
  int i;
  cin >> i ;
  int a;
  int b;
  int c;
  int d;
  a = i / 1000;
  b = (i - ( a * 1000 ) ) / 100 ;
  c = (i - ( a * 1000  + b * 100) ) / 10 ;
  d = i % 10;
  if(a >= 1 && b >= 3 ){
    if(c >= 1 && c >= 3 ){
      cout << "NA" << endl;
    }
    else if(c == 1 && d <= 2){
    cout << "YYMM" << endl;
    }
    else if(c == 0 && d >= 1){
    cout << "YYMM" << endl;
    }
  }
   if(a == 1 && b <= 2){
     if(c == 1 && d <= 2){
    cout << "AMBIGUOUS" << endl;
    }
    else if(c == 0 && d >= 1){
    cout << "AMBIGUOUS" << endl;
    }
   if(a >= 1 && b >= 3 ){
    cout << "MMYY" << endl;
      }
   if(a == 0 && b >= 1){
    cout << "YYMM" << endl;
   }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:39:2: error: expected '}' at end of input
   39 | }
      |  ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

#include<iostream>
using namespace std ;

int main()
{
  char S[4] ;
  for(int i=0;i<4;i++) cin>>S[i] ;
  
  int front=(int)S[0]*10+(int)S[1] ;
  int back=(int)S[2]*10+(int)S[3] ;
  
  if(1<=back&&back<=12){
    if(front!=0) cout<<"AMBIGUOUS"<<endl ;
    else cout<<"YYMM"<<endl ;
  }else if(1<=front&&front>=12) cout<<"MMYY"<<endl ;
  }else cout<<"NA"<<endl ;

  
  return 0 ;
}

Compiler output:
a.cc:16:4: error: expected unqualified-id before 'else'
   16 |   }else cout<<"NA"<<endl ;
      |    ^~~~
a.cc:19:3: error: expected unqualified-id before 'return'
   19 |   return 0 ;
      |   ^~~~~~
a.cc:20:1: error: expected declaration before '}' token
   20 | }
      | ^
Language: Java

import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner stdle = new Scanner(System.in);
		// 整数の入力
		int a = stdle.nextInt();
        int front = a/100;
        int back = a%100;
        int flagF = 0;
        int flagB = 0;
        
        if(front > 12){
            flagF = 1;
        }
        if(back > 12){
            flagB = 1;
        }

        if(falgF == 1 && flagB == 1){
            NA();
        }

        if(flagF == 0 && flagB == 0){
            AMBIGUOUS();
        }

        if(flagF == 1 && flagB == 0){
            YYMM();
        }

        if(flagF == 0 && flagB == 1){
            MMYY();
        }

    }
    
    public static void YYMM(){
        System.out.println("YYMM");
    }
    public static void MMYY(){
        System.out.println("MMYY");
    }
    public static void AMBIGUOUS(){
        System.out.println("AMBIGUOUS");
    }
    public static void NA(){
        System.out.println("NA");
    }
}

Compiler output:
Main.java:19: error: cannot find symbol
        if(falgF == 1 && flagB == 1){
           ^
  symbol:   variable falgF
  location: class Main
1 error
Language: C++

#include <iostream>
#include <vector>
#include <algorithm>
#include <string>
#include <map>
#include <list>
#include <stack>
#include <queue>

using namespace std;

int main()
{
    
    
    string s;
    cin >>  s;
    
    
    int s1;
    int s2;
    
    
    if((s[0]=='0'&& s[1]!='0') ||(s[0]=='1'&&s[1]=='0')||(s[0]=='1'&&s[1]=='1')||(s[0]=='1'&&s[1]=='2'))
        s1 =1;
   
    else s1=0;
    
    
    if((s[1]=='0'&& s[2]!='0') ||(s[1]=='1'&&s[2]=='0')||(s[1]=='1'&&s[2]=='1')||(s[1]=='1'&&s[2]=='2'))
        s2 =1;
    
    else s2=0;
    
    if(s1==1&&s2==1) cout << "AMBIGUOUS";
    if(s1==1&&s2==0) cout << "MMYY";
    if(s1==0&&s2==1) cout << "YYMM";
    else (s1==0&&s2==0) cout << "NA";
    
    
}


Compiler output:
a.cc: In function 'int main()':
a.cc:38:24: error: expected ';' before 'cout'
   38 |     else (s1==0&&s2==0) cout << "NA";
      |                        ^~~~~
      |                        ;
Language: C++

#include <bits/stdc++.h>
#include <numeric>
#include<iostream>
#include<vector>
#include<algorithm>
using namespace std;

int main(){
    int s;
    string ans;
    cin >> s;
    if((s>=1300||s<100) ans="NA";
    else{
        if(s/100<=12&&s%100<=12) ans="AMBIGUOUS";
        else if(s/100==00||s/100>12&&s%100<=12) ans="YYMM";
        else if(s/100<=12&&s%100==00||s%100>12) ans="MMYY";
        else ans="NA";
    }
    cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:24: error: expected ';' before 'ans'
   12 |     if((s>=1300||s<100) ans="NA";
      |                        ^~~~
      |                        ;
a.cc:13:5: error: expected primary-expression before 'else'
   13 |     else{
      |     ^~~~
a.cc:12:34: error: expected ')' before 'else'
   12 |     if((s>=1300||s<100) ans="NA";
      |       ~                          ^
      |                                  )
   13 |     else{
      |     ~~~~
Language: C++

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

int main() {
    int s[4];
    int flagA,flagB;
    for(int i=0; i<4; i++){
        cin >> s[i];
    }
    flagA = 0;
    if(12 >=s[0]*10 + s[1]){
        if(0 ==s[0]*10 + s[1]){
            flagA = 1;
        }
    }
    flagB = 0;
    if(12 >=s[2]*10 + s[3]){
        if(0 ==s[2]*10 + s[3]){
            flagB = 1;
        }
    }
    if(flagA==1 && flagB==1)
        cout << "AMBIGUOUS" << endl;
    else if (flagA==1 && flagB==0)
        cout << "MMYY" << endl;
    else if (flagA==0 && flagB==1)
        cout << "YYMM" << endl;
    else cout << "NA" << endl;
    }   
}

Compiler output:
a.cc:30:1: error: expected declaration before '}' token
   30 | }
      | ^
Language: C++

#include <stdio.h>

#define IN_SIZE 4U
#define OUT_SIZE 10U

int main (void)
{
    char s[IN_SIZE], s_out[OUT_SIZE];
    unsigned int upper, lower;

    scanf("%s", s);
    upper = (unsigned int)s[0] * 10 + (unsigned int)s[1];
    lower = (unsigned int)s[2] * 10 + (unsigned int)s[3];

    if (upper == 0 || lower == 0)
    {
        s_out = "NA";
    }
    else
    {
        if (upper < 13)
        {
            // MMYY?
            if (lower < 13)
            {
                s_out = "AMBIGUOUS";
            }
            else
            {
                s_out = "MMYY";
            }
        }
        else
        {
            // YYMM?
            if (lower < 13)
            {
                s_out = "YYMM";
            }
            else
            {
                s_out = "AMBIGUOUS";
            }
        }
    }

    printf("%s\n", s_out);

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:15: error: incompatible types in assignment of 'const char [3]' to 'char [10]'
   17 |         s_out = "NA";
      |         ~~~~~~^~~~~~
a.cc:26:23: error: invalid array assignment
   26 |                 s_out = "AMBIGUOUS";
      |                 ~~~~~~^~~~~~~~~~~~~
a.cc:30:23: error: incompatible types in assignment of 'const char [5]' to 'char [10]'
   30 |                 s_out = "MMYY";
      |                 ~~~~~~^~~~~~~~
a.cc:38:23: error: incompatible types in assignment of 'const char [5]' to 'char [10]'
   38 |                 s_out = "YYMM";
      |                 ~~~~~~^~~~~~~~
a.cc:42:23: error: invalid array assignment
   42 |                 s_out = "AMBIGUOUS";
      |                 ~~~~~~^~~~~~~~~~~~~
Language: C++

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

int main() {
  int i;
  cin >> i ;
  int a;
  int b;
  int c;
  int d;
  a = i / 1000;
  b = {i - ( a * 1000 ) } / 100 ;
  c = {i - ( a * 1000  + b * 100) } / 10 ;
  d = i % 10;
  if(a >= 1 && b >= 3 ){
    if(c >= 1 && c >= 3 ){
      cout << "NA" << endl;
    }
    else if(c == 1 && d <= 2){
    cout << "YYMM" << endl;
    }
    else if(c == 0 && d >= 1){
    cout << "YYMM" << endl;
    }
  }
   if(a == 1 && b <= 2){
     if(c == 1 && d <= 2){
    cout << "AMBIGUOUS" << endl;
    }
    else if(c == 0 && d >= 1){
    cout << "AMBIGUOUS" << endl;
    }
   if(a >= 1 && b >= 3 ){
    cout << "MMYY" << endl;
      }
   if(a == 0 && b >= 1){
    cout << "YYMM" << endl;
   }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:26: error: expected ';' before '/' token
   12 |   b = {i - ( a * 1000 ) } / 100 ;
      |                          ^~
      |                          ;
a.cc:13:36: error: expected ';' before '/' token
   13 |   c = {i - ( a * 1000  + b * 100) } / 10 ;
      |                                    ^~
      |                                    ;
a.cc:39:2: error: expected '}' at end of input
   39 | }
      |  ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

s = input();
first = s[0:2]
second = s[2:4]

first = int(first)
second = int(second)

if first == 0 or second == 0:
    print("NA")

else:
    if first < 13:
        if second < 13:
            print("AMBIGUOUS")
        else:
            print("MMYY")

    else:
        if second < 13:
            print("YYMM")
        else:
            print("NA")


Compiler output:
a.cc:1:1: error: 's' does not name a type
    1 | s = input();
      | ^
a.cc:2:1: error: 'first' does not name a type
    2 | first = s[0:2]
      | ^~~~~
Language: C++

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

int main(){
  int s; cin>>s;
  string ans = "NA";
  if(s.substr(0,2) > 00 && s.substr(0,2) < 13 && s.substr(2,2) != 00){
    ans = "MMYY";
    if(s.substr(2,2) <13){
      ans = "AMBIGUOUS";
    }
  }else if(s.substr(2,2) > 00 && s.substr(2,2) < 13){
    ans = "YYMM";
  }
  cout<<ans<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:8: error: request for member 'substr' in 's', which is of non-class type 'int'
    7 |   if(s.substr(0,2) > 00 && s.substr(0,2) < 13 && s.substr(2,2) != 00){
      |        ^~~~~~
a.cc:7:30: error: request for member 'substr' in 's', which is of non-class type 'int'
    7 |   if(s.substr(0,2) > 00 && s.substr(0,2) < 13 && s.substr(2,2) != 00){
      |                              ^~~~~~
a.cc:7:52: error: request for member 'substr' in 's', which is of non-class type 'int'
    7 |   if(s.substr(0,2) > 00 && s.substr(0,2) < 13 && s.substr(2,2) != 00){
      |                                                    ^~~~~~
a.cc:9:10: error: request for member 'substr' in 's', which is of non-class type 'int'
    9 |     if(s.substr(2,2) <13){
      |          ^~~~~~
a.cc:12:14: error: request for member 'substr' in 's', which is of non-class type 'int'
   12 |   }else if(s.substr(2,2) > 00 && s.substr(2,2) < 13){
      |              ^~~~~~
a.cc:12:36: error: request for member 'substr' in 's', which is of non-class type 'int'
   12 |   }else if(s.substr(2,2) > 00 && s.substr(2,2) < 13){
      |                                    ^~~~~~
Language: C++

#include <iostream>
#include <string>
using namespace std;
 
int main(){
  string S;
  cin >> S;
  
  char c0 = S[0];
	String.valueOf(c0);
  char c1 = S[1];
	String.valueOf(c1);
  char c2 = S[2];
	String.valueOf(c2);
  char c3 = S[3];
	String.valueOf(c3);
  string c01 = c0 + c1;
  string c23 = c2 + c3;
  
  int i01 = stoi(c01);
  int i23 = stoi(c23);
  
  if(i01 >= 1 && i01 <=12 && i23 >= 1 && i23 <=12) {
    cout << "AMBIGUOUS" << endl;
  }else if(i01 >= 0 && i23 >= 1 && i23 <=12) {
    cout << "YYMM" << endl;
  }else if( i01 >= 1 && i01 <=12 && i23 >= 0) {
    cout << "MMYY" << endl;
  }else{
    cout << "NA" << endl;
  }
    
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:9: error: 'String' was not declared in this scope
   10 |         String.valueOf(c0);
      |         ^~~~~~
a.cc:17:19: error: conversion from 'int' to non-scalar type 'std::string' {aka 'std::__cxx11::basic_string<char>'} requested
   17 |   string c01 = c0 + c1;
      |                ~~~^~~~
a.cc:18:19: error: conversion from 'int' to non-scalar type 'std::string' {aka 'std::__cxx11::basic_string<char>'} requested
   18 |   string c23 = c2 + c3;
      |                ~~~^~~~
Language: C++

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

int main() {
    int s[4];
    int flagA,flagB;
    for(int i=0; i<4; i++){
        cin >> s[i];
    }
    flagA = 0;
    if(12 >=s[0]*10 + s[1]){
        if(0 ==s[0]*10 + s[1]){
            flagA = 1;
        }
    }
    flagB = 0;
    if(12 >=s[2]*10 + s[3]){
        if(0 ==s[2]*10 + s[3]){
            flagB = 1;
        }
    }
    if(flagA==1 && flagB==1){
        cout << "AMBIGUOUS" << endl;
    }else (flagA==1 && flagB==0){
        cout << "MMYY" << endl;
    }else (flagA==0 && flagB==1){
        cout << "YYMM" << endl;
    }else cout << "NA" << endl;
    }   
}

Compiler output:
a.cc: In function 'int main()':
a.cc:24:33: error: expected ';' before '{' token
   24 |     }else (flagA==1 && flagB==0){
      |                                 ^
      |                                 ;
a.cc:26:6: error: 'else' without a previous 'if'
   26 |     }else (flagA==0 && flagB==1){
      |      ^~~~
a.cc:26:33: error: expected ';' before '{' token
   26 |     }else (flagA==0 && flagB==1){
      |                                 ^
      |                                 ;
a.cc:28:6: error: 'else' without a previous 'if'
   28 |     }else cout << "NA" << endl;
      |      ^~~~
a.cc: At global scope:
a.cc:30:1: error: expected declaration before '}' token
   30 | }
      | ^
Language: C++

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

int main() {
  string s;
  cin>>s;
  s[0]+=s[1]
  s[2]+=s[3]
  if(s[2]<=12&&s[2]!=00){
    cout<<"YYMM"<<endl;
  }
  else if(s[0]<=12&&s[0]!=00){
    cout<<"MMYY"<<endl;
  }
  else if(s[0]<=12&&s[0]!=00&&s[2]<=12&&s[2]!=00){
    cout<<"AMBIGUOUS"<<endl;
  }
  else{
    cout<<"NA"<<endl;
  }
  
}




Compiler output:
a.cc: In function 'int main()':
a.cc:7:13: error: expected ';' before 's'
    7 |   s[0]+=s[1]
      |             ^
      |             ;
    8 |   s[2]+=s[3]
      |   ~          
a.cc:12:3: error: 'else' without a previous 'if'
   12 |   else if(s[0]<=12&&s[0]!=00){
      |   ^~~~
Language: C++

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

int main() {
    int s[4];
    int flagA,flagB;
    for(int i=0; i<4; i++){
        cin >> s[i];
    }
    flagA = 0;
    if(12 >=s[0]*10 + s[1]){
        if(0 ==s[0]*10 + s[1]){
            flagA = 1;
        }
    }
    flagB = 0;
    if(12 >=s[2]*10 + s[3]){
        if(0 ==s[2]*10 + s[3]){
            flagB = 1;
        }
    }
    if(flagA==1 && flagB==1){
        cout << "AMBIGUOUS" << endl;
    else if(flagA==1 && flagB==0){
        cout << "MMYY" << endl;
    else if(flagA==0 && flagB==1){
        cout << "YYMM" << endl;
    else cout << "NA" << endl;
    }   
    }
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:24:5: error: expected '}' before 'else'
   24 |     else if(flagA==1 && flagB==0){
      |     ^~~~
a.cc:22:29: note: to match this '{'
   22 |     if(flagA==1 && flagB==1){
      |                             ^
a.cc:26:5: error: expected '}' before 'else'
   26 |     else if(flagA==0 && flagB==1){
      |     ^~~~
a.cc:24:34: note: to match this '{'
   24 |     else if(flagA==1 && flagB==0){
      |                                  ^
a.cc:28:5: error: expected '}' before 'else'
   28 |     else cout << "NA" << endl;
      |     ^~~~
a.cc:26:34: note: to match this '{'
   26 |     else if(flagA==0 && flagB==1){
      |                                  ^
a.cc: At global scope:
a.cc:30:5: error: expected declaration before '}' token
   30 |     }
      |     ^
a.cc:31:5: error: expected declaration before '}' token
   31 |     }
      |     ^
a.cc:32:1: error: expected declaration before '}' token
   32 | }
      | ^