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

#include <algorithm>
#include <cassert>
#include <cstring>
#include <iostream>
#include <vector>
#include <cmath>

using namespace std;

#define FOR(i, a, b) for (int i = (a); i < (b); ++i)
#define REP(i, n) FOR(i, 0, n)
#define TRACE(x) cout << #x << " = " << x << endl
#define _ << " _ " <<

typedef long long llint;

struct Pt {
  int x, y, i;
};

int ccw(const Pt& a, const Pt& b, const Pt& c) {
  llint w = 0;
  w += llint(a.x) * (b.y - c.y);
  w += llint(b.x) * (c.y - a.y);
  w += llint(c.x) * (a.y - b.y);
  return w < 0 ? -1 : w > 0;
}

llint dist(const Pt& a, const Pt& b) {
  llint dx = a.x - b.x;
  llint dy = a.y - b.y;
  return dx * dx + dy * dy;
}

vector<Pt> hull(vector<Pt>& v) {
  int first = 0;
  REP(i, (int)v.size()) {
    if (make_pair(v[i].x, v[i].y) < make_pair(v[first].x, v[first].y)) first = i;
  }

  swap(v[0], v[first]);
  sort(v.begin() + 1, v.end(), [&] (const Pt& a, const Pt& b) {
      int c = ccw(v[0], a, b);
      if (c == 0) return dist(v[0], a) < dist(v[0], b);
      return c > 0;
    });

  vector<Pt> hull;
  for (auto& p: v) {
    while (hull.size() >= 2 && ccw(hull[(int)hull.size()-2], hull.back(), p) <= 0) hull.pop_back();
    hull.push_back(p);
  }
  return hull;
}

int main(void) {
  int n;
  scanf("%d", &n);
  vector<Pt> v(n);
  REP(i, n) {
    scanf("%d %d", &v[i].x, &v[i].y);
    v[i].i = i;
  }

  v = hull(v);

  vector<double> angles(n, 0);
  REP(i, (int)v.size()) {
    int p = i == 0 ? (int)v.size() - 1 : i - 1;
    int q = (i + 1) % (int)v.size();
    llint x1 = v[i].x - v[p].x;
    llint y1 = v[i].y - v[p].y;
    llint x2 = v[q].x - v[i].x;
    llint y2 = v[q].y - v[i].y;
    double cs = (x1 * x2 + y1 * y2) / sqrt(x1*x1 + y1*y1) /  sqrt(x2*x2 + y2*y2) + 1e-12;
    double angle = acos(cs);
    if (angle < 0) angle += acos(-1);
    angles[v[i].i] = angle;
  }

  double total = accumulate(angles.begin(), angles.end(), 0.0);
  REP(i, n) printf("%.12lf\n", angles[i] / total);
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:81:18: error: 'accumulate' was not declared in this scope
   81 |   double total = accumulate(angles.begin(), angles.end(), 0.0);
      |                  ^~~~~~~~~~
Language: C++

#include <algorithm>
#include <cassert>
#include <cstring>
#include <iostream>
#include <vector>

using namespace std;

#define FOR(i, a, b) for (int i = (a); i < (b); ++i)
#define REP(i, n) FOR(i, 0, n)
#define TRACE(x) cout << #x << " = " << x << endl
#define _ << " _ " <<

typedef long long llint;

struct Pt {
  int x, y, i;
};

int ccw(const Pt& a, const Pt& b, const Pt& c) {
  llint w = 0;
  w += llint(a.x) * (b.y - c.y);
  w += llint(b.x) * (c.y - a.y);
  w += llint(c.x) * (a.y - b.y);
  return w < 0 ? -1 : w > 0;
}

llint dist(const Pt& a, const Pt& b) {
  llint dx = a.x - b.x;
  llint dy = a.y - b.y;
  return dx * dx + dy * dy;
}

vector<Pt> hull(vector<Pt>& v) {
  int first = 0;
  REP(i, (int)v.size()) {
    if (make_pair(v[i].x, v[i].y) < make_pair(v[first].x, v[first].y)) first = i;
  }

  swap(v[0], v[first]);
  sort(v.begin() + 1, v.end(), [&] (const Pt& a, const Pt& b) {
      int c = ccw(v[0], a, b);
      if (c == 0) return dist(v[0], a) < dist(v[0], b);
      return c > 0;
    });

  vector<Pt> hull;
  for (auto& p: v) {
    while (hull.size() >= 2 && ccw(hull[(int)hull.size()-2], hull.back(), p) <= 0) hull.pop_back();
    hull.push_back(p);
  }
  return hull;
}

int main(void) {
  int n;
  scanf("%d", &n);
  vector<Pt> v(n);
  REP(i, n) {
    scanf("%d %d", &v[i].x, &v[i].y);
    v[i].i = i;
  }

  v = hull(v);

  vector<double> angles(n, 0);
  REP(i, (int)v.size()) {
    int p = i == 0 ? (int)v.size() - 1 : i - 1;
    int q = (i + 1) % (int)v.size();
    llint x1 = v[i].x - v[p].x;
    llint y1 = v[i].y - v[p].y;
    llint x2 = v[q].x - v[i].x;
    llint y2 = v[q].y - v[i].y;
    double cs = (x1 * x2 + y1 * y2) / sqrt(x1*x1 + y1*y1) /  sqrt(x2*x2 + y2*y2) + 1e-12;
    double angle = acos(cs);
    if (angle < 0) angle += acos(-1);
    angles[v[i].i] = angle;
  }

  double total = accumulate(angles.begin(), angles.end(), 0.0);
  REP(i, n) printf("%.12lf\n", angles[i] / total);
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:74:39: error: 'sqrt' was not declared in this scope
   74 |     double cs = (x1 * x2 + y1 * y2) / sqrt(x1*x1 + y1*y1) /  sqrt(x2*x2 + y2*y2) + 1e-12;
      |                                       ^~~~
a.cc:75:20: error: 'acos' was not declared in this scope; did you mean 'cs'?
   75 |     double angle = acos(cs);
      |                    ^~~~
      |                    cs
a.cc:80:18: error: 'accumulate' was not declared in this scope
   80 |   double total = accumulate(angles.begin(), angles.end(), 0.0);
      |                  ^~~~~~~~~~
Language: C++

#define BUF (1000)
#define ll long long 
#define INF (1000005)

int n;

typedef struct {
	int x;
	int y;	
}P;

P p[105];

#define BIN (500000)
int v[BIN];

int main(void){
	cin >> n;

	for(int i=1;i<=n;i++){
		cin >> p[i].x >> p[i].y;
	}	

	double th = 2*M_PI/BIN;
	double theta = 0;
	for(int i=0;i<BIN;i++){
		theta+=th;	
		double mx=-INF;
		int max_i=-1;
		for(int j=1;j<=n;j++){
			double tmp = p[j].x*cos(theta)+p[j].y*sin(theta) ;
			if(mx < tmp){
				mx = tmp;
				max_i = j;
			}
		}
		v[max_i]++;
	}

	for(int i=1;i<=n;i++){
		cout << (double)v[i]/(double)BIN << "\n";
	}

	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:18:9: error: 'cin' was not declared in this scope
   18 |         cin >> n;
      |         ^~~
a.cc:24:23: error: 'M_PI' was not declared in this scope
   24 |         double th = 2*M_PI/BIN;
      |                       ^~~~
a.cc:31:45: error: 'cos' was not declared in this scope; did you mean 'const'?
   31 |                         double tmp = p[j].x*cos(theta)+p[j].y*sin(theta) ;
      |                                             ^~~
      |                                             const
a.cc:31:63: error: 'sin' was not declared in this scope
   31 |                         double tmp = p[j].x*cos(theta)+p[j].y*sin(theta) ;
      |                                                               ^~~
a.cc:41:17: error: 'cout' was not declared in this scope
   41 |                 cout << (double)v[i]/(double)BIN << "\n";
      |                 ^~~~
Language: C++

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

using namespace std;

const double pi = 3.141592653589793238;

void main() {
	int N;
	cin >> N;
	vector<vector<double>> x(N, vector<double>(2));
	for (int i = 0; i < N; i++) cin >> x[i][0] >> x[i][1];
	vector<vector<vector<double>>> normal(N, vector<vector<double>>(0, vector<double>(2)));
	for (int i = 0; i < N - 1; i++) {
		for (int j = i + 1; j < N; j++) {
			vector<double> dx(2);
			dx[0] = x[i][0] - x[j][0];
			dx[1] = x[i][1] - x[j][1];
			normal[j].push_back(dx);
			dx[0] *= -1;
			dx[1] *= -1;
			normal[i].push_back(dx);
		}
	}
	vector<vector<double>> dead(N, vector<double>(2, 0.0));
	for (int i = 0; i < N; i++) {
		for (int j = 0; j < normal[i].size(); j++) {
			double theta;
			theta = atan2(normal[i][j][0], normal[i][j][1]);
			if (j == 0) {
				dead[i][0] = theta - pi / 2.0;
				dead[i][1] = theta + pi / 2.0;
				continue;
			}
			while (theta - pi / 2.0 + 2.0 * pi < dead[i][1]) theta += 2.0 * pi;
			dead[i][0] = min(dead[i][0], theta - pi / 2.0);
			dead[i][1] = max(dead[i][1], theta + pi / 2.0);
			if (dead[i][1] - dead[i][0] >= 2.0 * pi) break;
		}
		cout << setprecision(15) << (2.0 * pi - min(2.0 * pi, dead[i][1] - dead[i][0])) / (2.0 * pi) << endl;
	}

	system("pause");
}

Compiler output:
a.cc:13:1: error: '::main' must return 'int'
   13 | void main() {
      | ^~~~
Language: C++

#include <bits/stdc++.h> 
 
using namespace std;
 
template<class T> inline string toString(T x) {ostringstream sout;sout<<x;return sout.str();}
 
 
//typedef
//------------------------------------------
typedef pair<int, int> PII;
typedef long long LL;
typedef pair<LL, LL> PLL;
 
//container util
//------------------------------------------
#define PB emplace_back
#define MP make_pair 
#define SZ(a) int((a).size())
//repetition
//------------------------------------------
#define FOR(i,a,b) for(LL i=(a);i<(b);++i)
#define REP(i,n)  FOR(i,0,n)
#define SORT(c) sort((c).begin(),(c).end())
//constant
//--------------------------------------------
//clear memory
#define CLR(a) memset((a), 0 ,sizeof(a))

const double EPS=1e-10;

double add(double a,double b){
    if(abs(a+b)<EPS*(abs(a)+abs(b)))return 0;
    return a+b;
}
struct P{
    double x,y;
    P(){}
    P(double x,double y):x(x),y(y){
    }
    P operator + (P p){
        return P(add(x,p.x),add(y,p.y));
    }
    P operator - (P p){
        return P(add(x,-p.x),add(y,-p.y));
    }
    P operator * (double d){
        return P(x*d,y*d);
    }
    double dot(P p){
        return add(x*p.x,y*p.y);
    }
    double det(P p){
        return add(x*p.y,-y*p.x);
    }
};
bool cmp_x(const P&p,const P& q){
    if(p.x!=q.x)return p.x<q.x;
    return p.y<q.y;
}
vector<P> convex_hull(P* ps,int n){
    sort(ps,ps+n,cmp_x);
    int k=0;
    vector<P>qs(n*2);
    REP(i,n){
        while(k>1&&(qs[k-1]-qs[k-2]).det(ps[i]-qs[k-1])<=0)k--;
        qs[k++]=ps[i];
    }
    for(int i=n-2,t=k;i>=0;i--){
        while(k>t&&(qs[k-1]-qs[k-2]).det(ps[i]-qs[k-1])<=0)k--;
        qs[k++]=ps[i];
    }
    qs.resize(k-1);
    return qs;
}
P ps[101];
int main(){
    double M_PI=atan(1.0)*4.0;
    int N;
    cin>>N;
    map<PII,int>mp;
    REP(i,N){
        int x,y;
        cin>>x>>y;
        ps[i]=P(x,y);
        mp[MP(x,y)]=i;
    }
    if(N==2){
        cout<<0.5<<endl;
        cout<<0.5<<endl;
        return 0;
    }
    vector<P>qs=convex_hull(ps,N);
    P divp;
    vector<double>res(N,0);
    long double sum=0.0;
    int Q=SZ(qs);
    REP(i,SZ(qs)){
        divp=qs[(i+1)%Q]-qs[i%Q];
        double d1=sqrt(divp.x*divp.x+divp.y*divp.y);
        P p1=divp;
        divp=qs[(i-1+Q)%Q]-qs[i%Q];
        double d2=sqrt(divp.x*divp.x+divp.y*divp.y);
        P p2=divp;
        double as=acos(p1.dot(p2)/(d1*d2));
        //cout<<mp[MP(qs[i].x,qs[i].y)]<<" "<<as<<endl;
        //cout<<mp[MP(qs[i].x,qs[i].y)]<<" "<<M_PI-abs(as)<<endl;
        sum+=abs(M_PI-as);
        res[mp[MP((int)qs[i].x,(int)qs[i].y)]]=abs(M_PI-as);
    }
    REP(i,N){
        cout<<fixed<<setprecision(10)<<res[i]/sum<<endl;
    }
    return 0;
}

Compiler output:
In file included from /usr/include/c++/14/cmath:47,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:114,
                 from a.cc:1:
a.cc: In function 'int main()':
a.cc:77:12: error: expected unqualified-id before numeric constant
   77 |     double M_PI=atan(1.0)*4.0;
      |            ^~~~
Language: C++

#include <bits/stdc++.h> 
 
using namespace std;
 
template<class T> inline string toString(T x) {ostringstream sout;sout<<x;return sout.str();}
 
 
//typedef
//------------------------------------------
typedef pair<int, int> PII;
typedef long long LL;
typedef pair<LL, LL> PLL;
 
//container util
//------------------------------------------
#define PB emplace_back
#define MP make_pair 
#define SZ(a) int((a).size())
//repetition
//------------------------------------------
#define FOR(i,a,b) for(LL i=(a);i<(b);++i)
#define REP(i,n)  FOR(i,0,n)
#define SORT(c) sort((c).begin(),(c).end())
//constant
//--------------------------------------------
//clear memory
#define CLR(a) memset((a), 0 ,sizeof(a))

const double EPS=1e-10;
double M_PI=atan(1.0)*4.0;
double add(double a,double b){
    if(abs(a+b)<EPS*(abs(a)+abs(b)))return 0;
    return a+b;
}
struct P{
    double x,y;
    P(){}
    P(double x,double y):x(x),y(y){
    }
    P operator + (P p){
        return P(add(x,p.x),add(y,p.y));
    }
    P operator - (P p){
        return P(add(x,-p.x),add(y,-p.y));
    }
    P operator * (double d){
        return P(x*d,y*d);
    }
    double dot(P p){
        return add(x*p.x,y*p.y);
    }
    double det(P p){
        return add(x*p.y,-y*p.x);
    }
};
bool cmp_x(const P&p,const P& q){
    if(p.x!=q.x)return p.x<q.x;
    return p.y<q.y;
}
vector<P> convex_hull(P* ps,int n){
    sort(ps,ps+n,cmp_x);
    int k=0;
    vector<P>qs(n*2);
    REP(i,n){
        while(k>1&&(qs[k-1]-qs[k-2]).det(ps[i]-qs[k-1])<=0)k--;
        qs[k++]=ps[i];
    }
    for(int i=n-2,t=k;i>=0;i--){
        while(k>t&&(qs[k-1]-qs[k-2]).det(ps[i]-qs[k-1])<=0)k--;
        qs[k++]=ps[i];
    }
    qs.resize(k-1);
    return qs;
}
P ps[101];
int main(){
    int N;
    cin>>N;
    map<PII,int>mp;
    REP(i,N){
        int x,y;
        cin>>x>>y;
        ps[i]=P(x,y);
        mp[MP(x,y)]=i;
    }
    if(N==2){
        cout<<0.5<<endl;
        cout<<0.5<<endl;
        return 0;
    }
    vector<P>qs=convex_hull(ps,N);
    P divp;
    vector<double>res(N,0);
    long double sum=0.0;
    int Q=SZ(qs);
    REP(i,SZ(qs)){
        divp=qs[(i+1)%Q]-qs[i%Q];
        double d1=sqrt(divp.x*divp.x+divp.y*divp.y);
        P p1=divp;
        divp=qs[(i-1+Q)%Q]-qs[i%Q];
        double d2=sqrt(divp.x*divp.x+divp.y*divp.y);
        P p2=divp;
        double as=acos(p1.dot(p2)/(d1*d2));
        //cout<<mp[MP(qs[i].x,qs[i].y)]<<" "<<as<<endl;
        //cout<<mp[MP(qs[i].x,qs[i].y)]<<" "<<M_PI-abs(as)<<endl;
        sum+=abs(M_PI-as);
        res[mp[MP((int)qs[i].x,(int)qs[i].y)]]=abs(M_PI-as);
    }
    REP(i,N){
        cout<<fixed<<setprecision(10)<<res[i]/sum<<endl;
    }
    return 0;
}

Compiler output:
In file included from /usr/include/c++/14/cmath:47,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:114,
                 from a.cc:1:
a.cc:30:8: error: expected unqualified-id before numeric constant
   30 | double M_PI=atan(1.0)*4.0;
      |        ^~~~
Language: C++

#ifndef DEBUG
#define NDEBUG
#endif

#include <algorithm>
#include <array>
#include <cassert>
#include <cmath>
#include <cstdio>
#include <cstring>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <map>
#include <memory>
#include <numeric>
#include <queue>
#include <set>
#include <stack>
#include <string>
#include <sstream>
#include <unordered_map>
#include <vector>


#define INF 2000000000
#define MOD 1000000007
#define ALL(x) std::begin(x), std::end(x)


#include "vecmath2.h"
#include "quickhull.h"


int main(int argc, char** argv)
{
  std::cin.tie(0);
  std::ios_base::sync_with_stdio(0);

  std::cout << std::fixed << std::setprecision(20);
  std::cerr << std::fixed << std::setprecision(3);

  int N;

  std::cin >> N;

  std::vector<point_t> pts(N);

  for (int i = 0; i < N; i ++)
    std::cin >> pts[i].x >> pts[i].y;

  std::vector<int> x(N);

  std::iota(ALL(x), 0);

  std::vector<int> hull(quickhull_t(pts).compute(x));

  int size = hull.size();

  std::vector<vector_t> perps;

  for (int i = 0; i < size; i ++) {
    int j = (i + 1) % size;

    vector_t e(pts[hull[j]] - pts[hull[i]]), perp(e.y, - e.x);

    perps.push_back(perp);
  }

  double c[111] = {0};

  for (int i = 0; i < size; i ++) {
    int j = (i - 1 + size) % size;

    double t = acos(perps[i] * perps[j] / (perps[i].length() * perps[j].length()));

    c[hull[i]] = t / M_PI / 2;
  }

  for (int i = 0; i < N; i ++)
    std::cout << c[i] << std::endl;

  return 0;
}


Compiler output:
a.cc:31:10: fatal error: vecmath2.h: No such file or directory
   31 | #include "vecmath2.h"
      |          ^~~~~~~~~~~~
compilation terminated.
Language: C++

// B.

#include <cstdio>
#include <cstring>
#include <iostream>
#include <algorithm>
#include <sstream>
#include <vector>

using namespace std;

struct Point {
	double x;
	double y;
	int i;
	bool operator < (const Point &p) const {
		return x < p.x || (x == p.x && y < p.y);
	}
};

double cross(const Point &O, const Point &A, const Point &B) {
	return (A.x - O.x) * (B.y - O.y) - (A.y - O.y) * (B.x - O.x);
}

vector<Point> convex_hull(vector<Point> P)
{
	int n = (int)P.size(), k = 0;
	if (n <= 2) {
		return P;
	}
	vector<Point> H(2 * n);
	sort(P.begin(), P.end());
	for (int i = 0; i < n; ++i) {
		while (k >= 2 && cross(H[k - 2], H[k - 1], P[i]) <= 0) k--;
		H[k++] = P[i];
	}
	for (int i = n - 2, t = k + 1; i >= 0; i--) {
		while (k >= t && cross(H[k - 2], H[k - 1], P[i]) <= 0) k--;
		H[k++] = P[i];
	}
	H.resize(k - 1);
	return H;
}

double rad(const Point &a, const Point &b, const Point &c) {
	double a1 = a.x - b.x, a2 = a.y - b.y;
	double b1 = c.x - b.x, b2 = c.y - b.y;
	double cos = (a1 * b1 + a2 * b2) / (sqrt(a1 * a1 + a2 * a2) * sqrt(b1 * b1 + b2 * b2));
	return acos(cos);
}


int main(int argc, char *argv[])
{
	cout.precision(10);
	int n;
	cin >> n;
	vector<Point> p(n);
	for (int i = 0; i < n; ++i) {
		cin >> p[i].x;
		cin >> p[i].y;
		p[i].i = i;
	}
	vector<double> res(n, 1.0 / n);
	if (n >= 3) {
		res = vector<double>(n);
		vector<Point> ch = convex_hull(p);
		for (int i = 0; i != ch.size(); ++i) {
			int prev = (i - 1 + ch.size()) % ch.size();
			int next = (i + 1) % ch.size();
			double r = rad(ch[prev], ch[i], ch[next]);
			res[ch[i].i] = (M_PI - r) / (2 * M_PI);
		}
	}
	for (int i = 0; i < n; ++i) {
		cout << res[i] << endl;
	}
	return 0;
}


Compiler output:
a.cc: In function 'double rad(const Point&, const Point&, const Point&)':
a.cc:48:45: error: 'sqrt' was not declared in this scope
   48 |         double cos = (a1 * b1 + a2 * b2) / (sqrt(a1 * a1 + a2 * a2) * sqrt(b1 * b1 + b2 * b2));
      |                                             ^~~~
a.cc:49:16: error: 'acos' was not declared in this scope; did you mean 'cos'?
   49 |         return acos(cos);
      |                ^~~~
      |                cos
a.cc: In function 'int main(int, char**)':
a.cc:72:41: error: 'M_PI' was not declared in this scope
   72 |                         res[ch[i].i] = (M_PI - r) / (2 * M_PI);
      |                                         ^~~~
Language: C++

#include <iostream>
#include <complex>
#include <cstdio>
#include <utility>
#include <vector>
using namespace std;
typedef complex<double> P;
typedef pair<P,P> L;
typedef pair<P,double> C;
typedef vector<P> Poly;
#define X real()
#define Y imag()
#define EPS (1e-10)
#define INF (1e15)

//2D version
namespace std{
  bool operator < (const P& a, const P& b){
    return a.X != b.X ? a.X < b.X : a.Y < b.Y;
  }
  bool operator == (const P& a, const P& b){
    return abs(a-b) < EPS;
  }
}

double dot(P a, P b){
  return a.X * b.X + a.Y * b.Y;
}
double cross(P a, P b){
  return a.X * b.Y - a.Y * b.X;
}

P n_vector(P a){
  //aベクトルに垂直な単位ベクトル
  double l = abs(a);
  return a*P(0.0,1.0)/l;
}

int main(){
  int N;
  cin >> N;
  vector<P> V(N);
  double x, y;
  for(int i = 0; i < N; ++i){
    cin >> x >> y;
    V[i] = P(x,y);
  }
  vector< vector<double> > A(N);
  double pi = acos(-1);
  for(int i = 0; i < N; ++i){
    for(int j = 0; j < N; ++j){
      if(i == j) continue;
      double theta = arg(n_vector(V[j]-V[i]));
      //if(theta < 0) theta += 2*pi;
      A[i].push_back(theta);
    }
  }
  for(int i = 0; i < N; ++i){
    sort(A[i].begin(), A[i].end());
    double m = A[i][0], M = A[i][0] + pi;
    for(int j = 0; j < A[i].size(); ++j){
      //double m_ = A[i][j], M_ = A[i][j] - pi;
      double m_ = A[i][j], M_ = A[i][j] + pi;
      //if(M_ < 0) M_ += 2*pi;
      m = max(m,m_);
      M = min(M,M_);
    }
    //cout << M << " " << m << endl;
    printf("%.12f\n",max(0.0,M-m)/pi/2.0);
  }
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:59:5: error: 'sort' was not declared in this scope; did you mean 'sqrt'?
   59 |     sort(A[i].begin(), A[i].end());
      |     ^~~~
      |     sqrt
Language: C++

# include <iostream>
# include <algorithm>
# include <vector>
# include <string>
# include <set>
# include <map>
# include <cmath>
# include <iomanip>
# include <functional>
# include <utility>
# include <stack>
# include <queue>
# include <list>
# include <tuple>
# include <unordered_map>
# include <numeric>
# include <complex>
# include <bitset>
# include <random>
# include <atltime.h>
using namespace std;
using LL = long long;
using ULL = unsigned long long;
typedef pair<LL, LL> P;
constexpr int INF = 2000000000;
constexpr int HINF = INF / 2;
constexpr double DINF = 100000000000000000.0;
constexpr long long LINF = 9223372036854775807;
constexpr long long HLINF = 4500000000000000000;
const double PI = acos(-1);
int dx[4] = { 0,1,0,-1 }, dy[4] = { 1,0,-1,0 };
# define ALL(x)      (x).begin(),(x).end()
# define UNIQ(c)     (c).erase(unique(ALL((c))),(c).end())
# define mp          make_pair
# define eb          emplace_back
# define FOR(i,a,b)  for(int i=(a);i<(b);i++)
# define RFOR(i,a,b) for(int i=(a);i>=(b);i--)
# define REP(i,n)    FOR(i,0,n)
# define INIT        std::ios::sync_with_stdio(false);std::cin.tie(0)

int n;
int x[101], y[101];
double ans[10000];

int main() {
	std::random_device rnd;     // 非決定的な乱数生成器でシード生成機を生成
	std::mt19937 mt(rnd()); //  メルセンヌツイスターの32ビット版、引数は初期シード
	std::uniform_int_distribution<> rand100(-10101010,10101010);     // [0, 99] 範囲の一様乱数
	
	/*for (int i = 0; i < 20; ++i) {
		std::cout << (int)rand100(mt) << "\n";
	}*/

	cin >> n;
	REP(i, n) {
		cin >> x[i] >> y[i];
	}

	CFileTime cTimeStart, cTimeEnd;
	CFileTimeSpan cTimeSpan;
	cTimeStart = CFileTime::GetCurrentTime();           // 現在時刻
	int cnt = 0;
	while (true) {
		cnt++;
		cTimeEnd = CFileTime::GetCurrentTime();           // 現在時刻
		cTimeSpan = cTimeEnd - cTimeStart;
		//cout << cTimeSpan.GetTimeSpan() / 10000 << endl;
		if (cTimeSpan.GetTimeSpan() / 10000 > 19000)break;
		int xx = (int)rand100(mt);
		int yy = (int)rand100(mt);
		LL dis = LINF;
		int minpos = -1;
		REP(i, n) {
			if (dis > abs(xx - x[i])*abs(xx - x[i]) + abs(yy - y[i])*abs(yy - y[i])) {
				minpos = i;
				dis = abs(xx - x[i])*abs(xx - x[i]) + abs(yy - y[i])*abs(yy - y[i]);
			}
		}
		ans[minpos]++;
	}

	REP(i, n) {
		cout << fixed << setprecision(10) << ans[i] / cnt << endl;
	}

	//system("pause");
}

Compiler output:
a.cc:20:11: fatal error: atltime.h: No such file or directory
   20 | # include <atltime.h>
      |           ^~~~~~~~~~~
compilation terminated.
Language: C++

#include<iostream>
#include<fstream>
#include<cstdio>
#include<vector>
#include<string>
#include<cstring>
#include<queue>
#include<map>
#include<set>
#include<algorithm>
#include<iomanip>
#include<bitset>
using namespace std;

//ifstream f("tttt");

int n, i, poz;

const double pii = 3.14159265358979323846;

int r, x[110], y[110], pozz[110];
double s[110];

double calc(int poz) {
    double r = 0;

    double px1 = (1.0 * x[poz] + x[poz - 1]) / 2, py1 = (1.0 * y[poz] + y[poz - 1]) / 2,
           px2 = (1.0 * x[poz] + x[poz + 1]) / 2, py2 = (1.0 * y[poz] + y[poz + 1]) / 2;

    px1 -= x[poz];
    px2 -= x[poz];
    py1 -= y[poz];
    py2 -= y[poz];


    double angle = atan2(py1, px1) - atan2(py2, px2);
    angle = angle * 360 / (2*pii);
    if (angle < 0){
        angle = angle + 360;
    }

    if(angle > 180)
        angle -= 180;


    angle = 180 - angle;

    return r = angle / 360.0;
}

void sol() {
int i, j, k;
    x[r + 1] = x[1];
    y[r + 1] = y[1];
    x[0] = x[r];
    y[0] = y[r];

    for(i = 1; i <= r; ++i) {
        s[pozz[i]] = calc(i);
    }

    for(i = 1; i <= n; ++i) {
        cout << fixed << setprecision(8) << s[i] << "\n";
    }
}

const int nmax = 1205, f_mare = 1e9;

struct punct {
    double x, y;
    int poz;
} a[nmax], minim;
int stiva[nmax], vf;

double det(punct a, punct b, punct c) {
    return a.x*b.y + b.x*c.y + c.x*a.y -
           c.x*b.y - b.x*a.y - c.y*a.x;
}

bool cmp(const punct &a, const punct &b) {
    return (a.y-minim.y)*(b.x-minim.x) < (b.y-minim.y)*(a.x-minim.x);
}

int main() {
    cin >> n;
    minim = {f_mare, f_mare};
    for (i = 1; i <= n; i++) {
        cin >> a[i].x >> a[i].y;
        a[i].poz = i;

        if (a[i].x < minim.x || (a[i].x == minim.x && a[i].y < minim.y))
            poz = i, minim = a[i];
    }
    swap(a[1], a[poz]);
    sort(a+2,a+n+1,cmp);
    stiva[1] = 1, stiva[2] = 2;
    vf = 2;
    for (i = 3; i <= n; i++) {
        while (vf > 2 && det(a[stiva[vf-1]], a[stiva[vf]], a[i]) <= 0) vf--;
        stiva[++vf] = i;
    }
    r = vf;
    for (i = 1; i <= vf; i++) {
        x[i] = a[stiva[i]].x; y[i] = a[stiva[i]].y;
        pozz[i] = a[stiva[i]].poz;
        }

        sol();
    return 0;
}


Compiler output:
a.cc: In function 'double calc(int)':
a.cc:36:20: error: 'atan2' was not declared in this scope
   36 |     double angle = atan2(py1, px1) - atan2(py2, px2);
      |                    ^~~~~
Language: C++

#include <iostream>
#include <cstdlib>
#include <algorithm>
#include <ctime>
#include <fstream>

using namespace std;

#define int int64_t
const int maxn = 100;
int x[maxn], y[maxn], cnt[maxn] = {};
#define rand32() ((int)rand() * RAND_MAX + rand() - (int)RAND_MAX * RAND_MAX / 2)
int dist(int x0, int y0, int x1, int y1)
{
	return ((x0 - x1) * (x0 - x1) + (y0 - y1) * (y0 - y1));
}

#ifndef LLONG_MAX
const int LLONG_MAX = 9223372036854775807ll;
#endif // !LLONG_MAX



int32_t main()
{
	//for (int i = 0; i < 100; i++)
	//	cerr << rand32() << "\n";;
	//cerr << RAND_MAX;
	ifstream cin("test.txt");
	int n;
	cin >> n;
	for (int i = 0; i < n; i++)
		cin >> x[i] >> y[i];
	int tot = 0;
	while (clock() * 1.0 / CLOCKS_PER_SEC < 1.9)
	{
		++tot;
		int X = rand32(), Y = rand32();
		int idx = 0, ans = ;
		for (int i = 0; i < n; i++)
		{
			int d = dist(x[i], y[i], X, Y);
			if (d < ans)
			{
				idx = i;
				ans = d;
			}
		}
		cnt[idx]++;
	}
	//cerr << tot << "\n";
	cout.precision(8);
	cout << fixed;
	for (int i = 0; i < n; i++)
		cout << (double)cnt[i] / tot << "\n";
	return 0;
}


Compiler output:
a.cc: In function 'int32_t main()':
a.cc:39:36: error: expected primary-expression before ';' token
   39 |                 int idx = 0, ans = ;
      |                                    ^
Language: C++

#include <iostream>
#include <cstdlib>
#include <algorithm>
#include <ctime>
#include <fstream>

using namespace std;

#define int int64_t
const int maxn = 100;
int x[maxn], y[maxn], cnt[maxn] = {};
#define rand32() ((int)rand() * RAND_MAX + rand() - (int)RAND_MAX * RAND_MAX / 2)
int dist(int x0, int y0, int x1, int y1)
{
	return ((x0 - x1) * (x0 - x1) + (y0 - y1) * (y0 - y1));
}

int32_t main()
{
	//for (int i = 0; i < 100; i++)
	//	cerr << rand32() << "\n";;
	//cerr << RAND_MAX;
	ifstream cin("test.txt");
	int n;
	cin >> n;
	for (int i = 0; i < n; i++)
		cin >> x[i] >> y[i];
	int tot = 0;
	while (clock() * 1.0 / CLOCKS_PER_SEC < 1.9)
	{
		++tot;
		int X = rand32(), Y = rand32();
		int idx = 0, ans = LLONG_MAX;
		for (int i = 0; i < n; i++)
		{
			int d = dist(x[i], y[i], X, Y);
			if (d < ans)
			{
				idx = i;
				ans = d;
			}
		}
		cnt[idx]++;
	}
	//cerr << tot << "\n";
	cout.precision(8);
	cout << fixed;
	for (int i = 0; i < n; i++)
		cout << (double)cnt[i] / tot << "\n";
	return 0;
}


Compiler output:
a.cc: In function 'int32_t main()':
a.cc:33:36: error: 'LLONG_MAX' was not declared in this scope
   33 |                 int idx = 0, ans = LLONG_MAX;
      |                                    ^~~~~~~~~
a.cc:6:1: note: 'LLONG_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
    5 | #include <fstream>
  +++ |+#include <climits>
    6 |
Language: C++

#include <iostream>
#include <vector>
#include <cmath>
#include <iomanip>

using namespace std;

typedef long long ll;

struct pt
{
	int x, y, i;
};

pt operator - (const pt &a, const pt &b)
{
	return {a.x - b.x, a.y - b.y, -1};
}

ll operator ^ (const pt &a, const pt &b)
{
	return a.x * (ll) b.y - a.y * (ll) b.x;
}

ll operator * (const pt &a, const pt &b)
{
	return a.x * (ll) b.x + a.y * (ll) b.y;
}

pt s;

bool operator < (const pt &a, const pt &b)
{
	return ((a - s) ^ (b - s)) < 0;
}

vector <pt> hull(vector <pt> e)
{
	sort(e.begin(), e.end(), [] (pt a, pt b)
	{
		if (a.x != b.x)
		{
			return a.x < b.x;
		}
		else
		{
			return a.y < b.y;
		}
	});
	s = e[0];
	sort(e.begin() + 1, e.end());
	vector <pt> h;
	for (auto c : e)
	{
		while (h.size() > 1)
		{
			pt a = h[(int) h.size() - 2];
			pt b = h[(int) h.size() - 1];
			if (((b - a) ^ (c - b)) > 0)
			{
				h.pop_back();
			}
			else
			{
				break;
			}
		}
		h.push_back(c);
	}
	return h;
}

double dist(const pt &a, const pt &b)
{
    ll len = (a.x - b.x) * (ll) (a.x - b.x) + (a.y - b.y) * (ll) (a.y - b.y);
    return sqrt(len);
}

int main()
{
#ifdef ONPC
    freopen("a.in", "r", stdin);
#endif
    ios::sync_with_stdio(0);
    cin.tie(0);
	int n;
    cin >> n;
	vector <pt> e;
	for (int i = 0; i < n; i++)
	{
		int x, y;
        cin >> x >> y;
		e.push_back({x, y, i});
	}
	vector <pt> cur = hull(e);
    e = cur;
    int m = (int) cur.size();
    double len = 0;
    for (int i = 0; i < m; i++)
    {
        len += dist(e[i], e[(i + 1) % m]); 
    }
    vector <double> ans(n);
    double pi = acos(-1);
    for (int i = 0; i < m; i++)
    {
        pt v1 = e[i] - e[(i + m - 1) % m];
        pt v2 = e[i] - e[(i + 1) % m];
        ans[e[i].i] = (atan2(v2 ^ v1, v2 * v1) + pi) / (2 * pi);
    }
    for (int i = 0; i < n; i++)
    {
        cout << fixed << setprecision(20) << ans[i] << '\n';
    }
}


Compiler output:
a.cc: In function 'std::vector<pt> hull(std::vector<pt>)':
a.cc:39:9: error: 'sort' was not declared in this scope; did you mean 'sqrt'?
   39 |         sort(e.begin(), e.end(), [] (pt a, pt b)
      |         ^~~~
      |         sqrt
Language: C++

#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>

#define F first
#define S second
#define int long long
#define ull  unsigned long long
#define pb push_back
#define double long double

using namespace std;
using namespace __gnu_pbds;
typedef  tree< int , null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;
double dist(double x, double y, double X, double Y){
    return X * x + Y * y;
}
const int N = 500;
double x[N], y[N], ans[N], c;
main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    //freopen("input.txt", "r", stdin);
    //freopen("output.txt", "w", stdout);
    int n;
    cin >> n;
    for (int i = 1; i <= n; i++) cin >> x[i] >> y[i];
    double pi = 2 * acos(-1);
    double a = 0;
    double eps = 5e-5
    while(a < pi){
        a += eps;
        int p = 0;
        c++;
        double q = -1e18;
        double X = cos(a);
        double Y = sin(a);
        for (int i = 1; i <= n; i++){
            if (dist(X, Y, x[i], y[i]) > q){
                q = dist(X, Y, x[i], y[i]);
                p = i;
            }
        }
       //cout << q << endl;
        ans[p]++;
    }
    for (int i = 1; i <= n; i++){
        cout << fixed << setprecision(15) << (double)ans[i] / c << " ";
    }
}


Compiler output:
a.cc:19:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   19 | main(){
      | ^~~~
a.cc: In function 'int main()':
a.cc:30:5: error: expected ',' or ';' before 'while'
   30 |     while(a < pi){
      |     ^~~~~
Language: C++

#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>

#define F first
#define S second
#define int long long
#define ull  unsigned long long
#define pb push_back
#define double long double

using namespace std;
using namespace __gnu_pbds;
typedef  tree< int , null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;
double dist(double x, double y, double X, double Y){
    return X * x + Y * y;
}
const int N = 500;
double x[N], y[N], ans[N], c;
main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    //freopen("input.txt", "r", stdin);
    //freopen("output.txt", "w", stdout);
    int n;
    cin >> n;
    for (int i = 1; i <= n; i++) cin >> x[i] >> y[i];
    double pi = 2 * acos(-1);
    double a = 0;
    double eps = 1e-6;
    while(a < pi){
        a += eps;
        int p = 0;
        c++;
        double q = -1e18;
        double X = cos(a);
        double Y = sin(a);
        for (int i = 1; i <= n; i++){
            if (dist(X, Y, x[i], y[i]) > q){
                q = dist(X, Y, x[i], y[i]);
                p = i;
            }
        }
       //cout << q << endl;
        ans[p]++;
    }
    for (int i = 1; i <= n; i++){
        cout << fixed << setprecision(15) << double)ans[i] / c << " ";
    }
}


Compiler output:
a.cc:19:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   19 | main(){
      | ^~~~
a.cc: In function 'int main()':
a.cc:9:16: error: expected primary-expression before 'long'
    9 | #define double long double
      |                ^~~~
a.cc:47:46: note: in expansion of macro 'double'
   47 |         cout << fixed << setprecision(15) << double)ans[i] / c << " ";
      |                                              ^~~~~~
Language: C++

#include <iostream>
#include <vector>
#include <cmath>

using namespace std;

struct Point {
    long long x, y;
    int ind;

    Point(long long int x, long long int y, int ind) : x(x), y(y), ind(ind) {}

    Point() {}

    Point operator+(Point p) {
        return {x + p.x, y + p.y, ind};
    }

    Point operator-(Point p) {
        return {x - p.x, y - p.y, ind};
    }
};

long long cross(Point a, Point b) {
    return a.x * b.y - a.y * b.x;
}

long long dot(Point a, Point b) {
    return a.x * b.x + a.y * b.y;
}

long long len2(Point a) {
    return a.x * a.x + a.y * a.y;
}

bool cmp(Point a, Point b) {
    if (cross(a, b) != 0) {
        return cross(a, b) > 0;
    } else {
        return len2(a) < len2(b);
    }
}

long double angle(Point a, Point b) {
    return atan2(cross(a, b), dot(a, b));
}

int main() {
    int n;
    cin >> n;
    vector<Point> a(n);
    for (int i = 0; i < n; i++) {
        cin >> a[i].x >> a[i].y;
        a[i].ind = i;
    }

    Point mn = a[0];
    for (int i = 0; i < n; i++) {
        if (a[i].y < mn.y || (a[i].y == mn.y && a[i].x < mn.x)) {
            mn = a[i];
        }
    }
    for (int i = 0; i < n; i++) {
        a[i] = a[i] - mn;
    }

    sort(a.begin(), a.end(), cmp);

    vector<Point> st;
    for (auto p : a) {
        while (st.size() >= 2 && cross(st.back() - st[st.size() - 2], p - st.back()) <= 0) {
            st.pop_back();
        }
        st.push_back(p);
    }

    vector<long double> ans(n);

    if (st.size() == 2) {
        ans[st[0].ind] = ans[st[1].ind] = 0.5;
    } else {
        for (int i = 0; i < st.size(); i++) {
            Point p1 = st[(i + st.size() - 1) % st.size()];
            Point p = st[i];
            Point p2 = st[(i + 1) % st.size()];

            Point v1 = p - p1;
            Point v2 = p2 - p;
            ans[p.ind] = angle(v1, v2) / 2 / M_PI;
        }
    }

    cout.precision(20);
    for (int i = 0; i < n; i++) {
        cout << ans[i] << "\n";
    }

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:67:5: error: 'sort' was not declared in this scope; did you mean 'sqrt'?
   67 |     sort(a.begin(), a.end(), cmp);
      |     ^~~~
      |     sqrt
Language: C

//include,using,define等
#pragma region header
#include <algorithm>
#include <bitset>
#include <tuple>
#include <cstdint>
#include <cctype>
#include <assert.h>
#include <stdlib.h>
#include <stdio.h>
#include <cassert>
#include <cfloat>
#include <climits>
#include <cmath>
#include <complex>
#include <ctime>
#include <deque>
#include <fstream>
#include <functional>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <list>
#include <limits>
#include <map>
#include <memory>
#include <queue>
#include <random>
#include <set>
#include <stack>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>
#include <math.h>
#include <cstring>

// ===============================================================
//using系
#pragma region header
using namespace std;
using ll = long long;
using lint = long long;
using vl = vector<long long>;
using vvl = vector<vector<long long>>;
using vvi = vector<vector<int>>;
using vs = vector<string>;
using vc = vector<char>;
using vcc = vector<vector<char>>;
using vm = vector<short>;
using vmm = vector<vector<short>>;
using pii = pair<int, int>;
using psi = pair<string, int>;
using ld = long double;
using ull = unsigned long long;
using ui = unsigned int;
using qul = queue<ll>;
using pql = priority_queue<ll>;
const int dx[] = { 1,0,-1,0 };
const int dy[] = { 0,1,0,-1 };
constexpr ll mod = 1e9 + 7;
constexpr long double pi = 3.141592653589793238462643383279;
#pragma endregion
// ========================================================================
//define
#pragma region header
//#define int long long
#define rep(i, n) for(ll i = 0; i < n; i++)
#define REP(i, n) for(ll i = 1; i <= n; i++)
#define INF (ll)10000000000000000
#define mod (ll)1000000007
#define P pair<lint,lint>
#pragma endregion
#pragma endregion



lint n, m, a, b;
char c[1010][1010];

int main() {
	cin >> n >> m >> a >> b;
	for (int i = 0; i < n; i++) 
		for (int j = 0; j < m; j++) 
			c[i][j] = '.';
	if (n * m <= a * 2 + b * 2) {
		printf("NO\n");
		return 0;
	}
	if (m % 2 == 1) {
		for (int i = 0; i < n - 1; i += 2) {
			if (b != 0) {
				b--;
				c[i][m - 1] = '^';
				c[i + 1][m - 1] = 'v';
			}
		}
	}
	if (n % 2 == 1 && b % 2 == 1 && n > 2 && m > 2) {
		b--;
		c[n - 2][m - 3] = '^';
		c[n - 1][m - 3] = 'v';
	}
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < m; j++) {
			if (b != 0) {
				if (c[i][j] == c[i + 1][j] && c[i][j] == '.') {
					b--;
					c[i][j] = '^';
					c[i + 1][j] = 'v';
				}
			}
		}
	}
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < m; j++) {
			if (a != 0) {
				if (c[i][j] == c[i][j + 1] && c[i][j] == '.') {
					a--;
					c[i][j] = '<';
					c[i][j + 1] = '>';
				}
			}
		}
	}
	if (a > 0 || b > 0) {
		printf("NO\n");
	}
	else {
		printf("YES\n");
		for (int i = 0; i < n; i++)
			printf("%s\n", c[i]);
	}

	return 0;
}

Compiler output:
main.c:3:10: fatal error: algorithm: No such file or directory
    3 | #include <algorithm>
      |          ^~~~~~~~~~~
compilation terminated.
Language: C++

int n,m,a,b,i; char p[1009][1009];
void x(int i, int j){p[i][j]=94;p[i+1][j]=118;b--;}
int main(int j){
	scanf("%d%d%d%d",&n,&m,&a,&b);
	for(i=1;i<=n;)memset(p[i++]+1,46,m);
	for(i=1;i<n&&b&&m&1;i+=2)x(i,m);
	if(b&n&m>2&n>1)x(n-1,m-2);
	for(i=1;i<n;i++)for(j=1;j<=m&&b;j++)if(p[i][j]+p[i+1][j]<99)x(i,j);
	for(i=1;i<=n;i++)for(j=1;j<m&&a;j++)if(p[i][j]+p[i][j+1]<99)p[i][j]=60,p[i][j+1]=62,a--;
	puts(a|b?"NO":"YES");
	for(i=1;!a&!b&i<=n;)puts(p[i++]+1);
	return 0;
}

Compiler output:
a.cc:3:5: warning: 'int main(int)' takes only zero or two arguments [-Wmain]
    3 | int main(int j){
      |     ^~~~
a.cc: In function 'int main(int)':
a.cc:4:9: error: 'scanf' was not declared in this scope
    4 |         scanf("%d%d%d%d",&n,&m,&a,&b);
      |         ^~~~~
a.cc:5:23: error: 'memset' was not declared in this scope
    5 |         for(i=1;i<=n;)memset(p[i++]+1,46,m);
      |                       ^~~~~~
a.cc:1:1: note: 'memset' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
  +++ |+#include <cstring>
    1 | int n,m,a,b,i; char p[1009][1009];
a.cc:10:9: error: 'puts' was not declared in this scope
   10 |         puts(a|b?"NO":"YES");
      |         ^~~~
Language: Java

import java.util.*;

public class I {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		int N, M, A, B;
		N = scan.nextInt();
		M = scan.nextInt();
		A = scan.nextInt();
		B = scan.nextInt();
		if ((A + B) * 2 > N * M) {
			System.out.println("NO");
		} else {

			char[][] s = new char[N][M];
			for (int q = 0; q < N; q++) {
				for (int w = 0; w < M; w++) {
					s[q][w] = 0;
				}
			}
			int k = 0;
			int j = 0;
			for (int cnt = 0; cnt < B; cnt++) {
				s[j][k] = '^';
				s[j + 1][k] = 'v';
				k++;
				if (k >= M) {
					k = 0;
					j += 2;
				}
			}
			for (int cnt = 0; cnt < A;) {
				if (s[j][k] == 0) {
					s[j][k] = '<';
					s[j][k+1] = '>';
					cnt++;
					if (k + 2 >= M) {
						k = 0;
						j++;
					} else {
						k ++;
					}
				} else {
					if (k + 2 >= M) {
						k = 0;
						j++;
					} else {
						k ++;
					}
				}

			}
			for (int q = 0; q < N; q++) {
				for (int w = 0; w < M; w++) {
					if (s[q][w] == 0) {
						System.out.print('.');
					} else {
						System.out.print(s[q][w]);
					}
				}
				System.out.println("");
			}

		}
	}
}

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

import java.util.*;

public class I {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		int N, M, A, B;
		N = scan.nextInt();
		M = scan.nextInt();
		A = scan.nextInt();
		B = scan.nextInt();
		if ((A + B) * 2 > N * M) {
			System.out.println("NO");
		} else {

			char[][] s = new char[1005][1005];
			for (int q = 0; q < N; q++) {
				for (int w = 0; w < M; w++) {
					s[q][w] = 0;
				}
			}
			int k = 0;
			int j = 0;
			for (int cnt = 0; cnt < B; cnt++) {
				s[j][k] = '^';
				s[j + 1][k] = 'v';
				k++;
				if (k >= M) {
					k = 0;
					j += 2;
				}
			}
			for (int cnt = 0; cnt < A;) {
				if (s[j][k] == 0) {
					s[j][k] = '<';
					s[j][k+1] = '>';
					cnt++;
					if (k + 2 >= M) {
						k = 0;
						j++;
					} else {
						k ++;
					}
				} else {
					if (k + 2 >= M) {
						k = 0;
						j++;
					} else {
						k ++;
					}
				}

			}
			for (int q = 0; q < N; q++) {
				for (int w = 0; w < M; w++) {
					if (s[q][w] == 0) {
						System.out.print('.');
					} else {
						System.out.print(s[q][w]);
					}
				}
				System.out.println("");
			}

		}
	}
}

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

#include<cstdio>
#include<algorithm>
#include<cstring>
#define rep(i, s, t) for(i = s; i <= t; ++i)
#define dep(i, s, t) for(i = s; i >= t; --i)

using namespace std;

const int N = 1010;
int n, m, nn, mm, A, B;
char mp[N][N];

void paint(int t, int o, bool stop) {
	int x, y;
	x = (t-1) / mm + 1; y = (t-1) % mm + 1;
	//printf("%d %d\n", x, y);
	x = (x-1) * 2 + 1; y = (y-1) * 2 + 1;
	if(!o) {
		mp[x][y] = '<'; mp[x][y+1] = '>';
		if(stop) return;
		mp[x+1][y] = '<'; mp[x+1][y+1] = '>';
	} else {
		mp[x][y] = '^'; mp[x+1][y] = 'v';
		if(stop) return;
		mp[x][y+1] = '^'; mp[x+1][y+1] = 'v';
	}
}

void so(int e) {
	int t, f, i, j;
	nn = n>>1; mm = m>>1; f = nn * mm;
	
	t = min(f, A/2); f -= t; A -= t*2;
	for(i = 1; i <= t; ++i) paint(i, 0, 0);
	t = min(f, B/2); f -= t; B -= t*2;
	for(t += i-1; i <= t; ++i) paint(i, 1, 0);
	
	if((A || B) && (!f)) {puts("NO"); return;9}
	if(A+B <= f+e) puts("YES"); else {puts("NO"); return;}
	
	if(f == 1 && A && B && e) {
		mp[n-2][m-2] = '<'; mp[n-2][m-1] = '>';
		mp[n-1][m-2] = '^'; mp[n][m-2] = 'v';
	} else {
		if(A) paint(i++, 0, 1);
		if(B) paint(i++, 1, 1);
	}
	rep(i, 1, n) {
		rep(j, 1, m) printf("%c", mp[i][j]);
		puts("");
	}
}

int main() {
	int i, j, down, right;
	scanf("%d%d%d%d", &n, &m, &A, &B);
	rep(i, 1, n) rep(j, 1, m) mp[i][j] = '.';
	if((n & 1) && (m > 1)) {
		down = min(A, m/2);
		A -= down; down <<= 1;
		rep(i, 1, down) mp[n][i] = (i&1)? '<': '>';
		if((m&1) && m>1 && m == down+1) {
			mp[n][m-2] = '.'; mp[n][m-1] = '<'; mp[n][m] = '>';
		}
	}
	if((m & 1) && (n > 1)) {
		right = min(B, n/2);
		B -= right; right <<= 1;
		rep(i, 1, right) mp[i][m] = (i&1)? '^': 'v';
	}
	
	if((n&1) && (m&1)) so(1); else so(0);
	return 0;
}

Compiler output:
a.cc: In function 'void so(int)':
a.cc:38:51: error: expected ';' before '}' token
   38 |         if((A || B) && (!f)) {puts("NO"); return;9}
      |                                                   ^
      |                                                   ;
Language: Java

import java.util.*;

public class Main {
    static char[][] c;
    public static void main(String[] args) throws InterruptedException {
        Scanner scan = new Scanner(System.in);
        int m = scan.nextInt();
        int n = scan.nextInt();
        int a = scan.nextInt();
        int b = scan.nextInt();
        c = new char[n][m];
        if(n * m < 2 * (a + b)) {
            System.out.println("NO");
            return;
        }
        if(n % 2 != 0) {
            int v = Math.min(b, m / 2);
            b -= v;
            for (int i = 0; i < v; i++) {
                c[n-1][2* i] = '^';
                c[n-1][2* i + 1] = 'v';
            }
        }
        if(m % 2 != 0) {
            int r = Math.min(a, n / 2);
            a -= r;
            for (int i = 0; i < r; i++) {
                c[2 * i][m- 1] = '<';
                c[2* i + 1][m-1] = '>';
            }
        }

Compiler output:
Main.java:31: error: reached end of file while parsing
        }
         ^
1 error
Language: C++

#include <bits/stdc++.h>

using namespace std;

string sign=".<>^v";
const int N=1e3+10;

int n,m;
int ans[N][N];


        if (flip){
                for(int i=1;i<=n;i++)
                        for(int j=i;j<=m;j++) swap(ans[i][j],ans[j][i]);
                swap(n,m);
        }
        cout<<"YES\n";
        for(int i=1;i<=n;i++){
                for(int j=1;j<=m;j++)
                        cout<<sign[ans[i][j]];
                cout<<'\n';
        }
}


Compiler output:
a.cc:12:9: error: expected unqualified-id before 'if'
   12 |         if (flip){
      |         ^~
a.cc:17:9: error: 'cout' does not name a type
   17 |         cout<<"YES\n";
      |         ^~~~
a.cc:18:9: error: expected unqualified-id before 'for'
   18 |         for(int i=1;i<=n;i++){
      |         ^~~
a.cc:18:21: error: 'i' does not name a type
   18 |         for(int i=1;i<=n;i++){
      |                     ^
a.cc:18:26: error: 'i' does not name a type
   18 |         for(int i=1;i<=n;i++){
      |                          ^
a.cc:23:1: error: expected declaration before '}' token
   23 | }
      | ^
Language: C++

#include <iostream>
int n,m,a,b,i; char p[1009][1009];
void x(int i, int j){p[i][j]=94;p[i+1][j]=118;b--;}
int main(int j){
	scanf("%d%d%d%d",&n,&m,&a,&b);
	for(i=1;i<=n;)memset(p[i++]+1,46,m);
	for(i=1;i<n&&b&&m&1;i+=2)x(i,m);
	if(b&n&m>2&n>1)x(n-1,m-2);
	for(i=1;i<n;i++)for(j=1;j<=m&&b;j++)if(p[i][j]+p[i+1][j]<99)x(i,j);
	for(i=1;i<=n;i++)for(j=1;j<m&&a;j++)if(p[i][j]+p[i][j+1]<99)p[i][j]=60,p[i][j+1]=62,a--;
	puts(a|b?"NO":"YES");
	for(i=1;!a&!b&i<=n;)puts(p[i++]+1);
	return 0;
}
	


Compiler output:
a.cc:4:5: warning: 'int main(int)' takes only zero or two arguments [-Wmain]
    4 | int main(int j){
      |     ^~~~
a.cc: In function 'int main(int)':
a.cc:6:23: error: 'memset' was not declared in this scope
    6 |         for(i=1;i<=n;)memset(p[i++]+1,46,m);
      |                       ^~~~~~
a.cc:2:1: note: 'memset' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    1 | #include <iostream>
  +++ |+#include <cstring>
    2 | int n,m,a,b,i; char p[1009][1009];