Submission #72197063

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;
int main(){
	int T;
	cin>>T;
	set<int>arr;
	unordered_map<int,int>SP;
	vector<int>brr;
	for(int i=1;i*i<T;i++){
		brr.push_back(i*i);
	}
	for(int i=0;i<brr.size();i++){
		for(int j=i+1;j<brr.size();j++)
		if(brr[i]+brr[j]<=T){
			int TT=brr[i]+brr[j];
			SP[TT]++;
		arr.insert(brr[i]+brr[j]);}
	}
	for (auto it = arr.begin(); it != arr.end(); ) {
    if (SP[*it]>=2) {
        it = arr.erase(it);  
    } else {
        ++it;
    }
}
	cout<<arr.size()<<endl;
for(auto& x : arr)
    printf("%d ",x);
}

Submission Info

Compile Error

./Main.cpp: In function 'int main()':
./Main.cpp:12:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 |         for(int i=0;i<brr.size();i++){
      |                     ~^~~~~~~~~~~
./Main.cpp:13:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |                 for(int j=i+1;j<brr.size();j++)
      |                               ~^~~~~~~~~~~

Judge Result