Submission #76622164

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
//#define int ll
//#define ll long long
#define pb emplace_back
#define pr pair<int,int>
#define mp make_pair
#define endl "\n"
inline int read()
{
	int x=0,f=1;char ch=getchar();
	while (ch<'0'||ch>'9'){if (ch=='-') f=-1;ch=getchar();}
	while (ch>='0'&&ch<='9'){x=x*10+ch-48;ch=getchar();}
	return x*f;
}
void write(int x)
{
    if(x<0)putchar('-'),x=-x;
    if(x<10)putchar(x+'0');
    else write(x/10),putchar(x%10+'0');
}
int n;
vector<int>q[105]; 
signed main(){
	n=read();
	for(int i=1;i<=n;i++){
		int u=read();
		for(int j=1;j<=u;j++){
			int k=read();
			q[k].pb(i);
		}
	}
	for(int i=1;i<=n;i++) sort(q[i].begin(),q[i].end());
	for(int i=1;i<=n;i++){
		cout<<q[i].size()<<" ";
		for(int j=0;j<q[i].size();j++) cout<<q[i][j]<<' ';
		cout<<endl;
	}
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function 'int main()':
./Main.cpp:36:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |                 for(int j=0;j<q[i].size();j++) cout<<q[i][j]<<' ';
      |                             ~^~~~~~~~~~~~

Judge Result