Submission #72268104

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Source Code Expand

#include <iostream>
#include <vector>
#include <algorithm>
#include <map>
#include <set>
#include <queue>
#include <stack>
#include <cmath>
#include <bitset>
#include <numeric>
using namespace std;
#define ll long long
#define vi vector<int>
#define vs vector<string>
#define vll vector<long long>
#define vii vector<pair<int, int>>
#define vllvector vector<pair<ll, ll>>
#define vb vector<bool>
#define yes cout << "Yes" << endl;
#define no cout << "No" << endl;
#define rep(i, c, n) for (int i = c; i < n; i++)
const long long llINF = 1LL << 60;
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return true;} return false;}
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return true;} return false;}
//! int型でinfを使うならINT_MAX使う
//! int = 2^31 -1

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    int n;
    cin >> n;
    vi c(n + 1);
    for(int x = 1; x * x <= n; x++) {
        for(int y = x +1; x * x + y * y <= n; y++) {
            c[x * x + y * y]++;
        }
    }
    vi ans;
    rep(i, 1, n+1) {
        if (c[i] == 1) ans.push_back(i);
    }
    cout << ans.size() << endl;
    rep(i, 0, ans.size()) {
        cout << ans[i] << (i +1 == ans.size() ? "\n": " ");
    }

}

Submission Info

Compile Error

./Main.cpp: In function 'int main()':
./Main.cpp:21:40: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 | #define rep(i, c, n) for (int i = c; i < n; i++)
      |                                        ^
./Main.cpp:45:5: note: in expansion of macro 'rep'
   45 |     rep(i, 0, ans.size()) {
      |     ^~~
./Main.cpp:46:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |         cout << ans[i] << (i +1 == ans.size() ? "\n": " ");
      |                            ~~~~~^~~~~~~~~~~~~

Judge Result