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Submission #975205

# Submission time Handle Problem Language Result Execution time Memory
975205 2024-05-04T14:47:25 Z ziewacz XOR Sum (info1cup17_xorsum) C++17
7 / 100
 106 ms 131072 KB 
#include <bits/stdc++.h>
#define debug(x...) cerr << "[" #x "]: ", [](auto... $) {((cerr << $ << "; "), ...); }(x), cerr << '\n'
using namespace std;
typedef long long ll;
typedef long double ld;
constexpr int MOD = 1000000007;


int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0);
    
    int n;
    cin >> n;
    vector<int> a(n);
    for(int i = 0; i < n; i++) {
        cin >> a[i];
    }
    vector<int> sumy;
    for(int i = 0; i < n; i++) {
        for(int j = i; j < n; j++) {
            sumy.push_back(a[i] + a[j]);
        }
    }
    int ans = sumy[0];
    for(int i = 1; i < sumy.size(); i++) {
        ans ^= sumy[i];
    }
    cout << ans;
    return 0;
}

Compilation message

xorsum.cpp: In function 'int main()':
xorsum.cpp:26:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |     for(int i = 1; i < sumy.size(); i++) {
      |                    ~~^~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 34756 KB Output is correct
2 Correct 28 ms 35500 KB Output is correct

Subtask #2
0 / 11.0

# Verdict Execution time Memory Grader output
1 Runtime error 106 ms 131072 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Runtime error 106 ms 131072 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #4
0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 34756 KB Output is correct
2 Correct 28 ms 35500 KB Output is correct
3 Runtime error 62 ms 131072 KB Execution killed with signal 9
4 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 34756 KB Output is correct
2 Correct 28 ms 35500 KB Output is correct
3 Runtime error 106 ms 131072 KB Execution killed with signal 9
4 Halted 0 ms 0 KB -