Submission #412781

#	Time	Username	Problem	Language	Result	Execution time	Memory
412781		aris12345678	XOR Sum (info1cup17_xorsum)	C++14	7 / 100	1671 ms	8744 KiB

xorsum

#include <bits/stdc++.h>
using namespace std;

const int mxN = 1e6+5;
int v[mxN];

int main() {
    int n;
    scanf("%d", &n);
    for(int i = 0; i < n; i++)
        scanf("%d", &v[i]);
    int ans = 0;
    for(int i = 0; i < n; i++) {
        for(int j = i; j < n; j++)
            ans ^= (v[i]+v[j]);
    }
    printf("%d\n", ans);
    return 0;
}

Compilation message (stderr)

xorsum.cpp: In function 'int main()':
xorsum.cpp:9:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
xorsum.cpp:11:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |         scanf("%d", &v[i]);
      |         ~~~~~^~~~~~~~~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 0 / 11
• Subtask 3: 0 / 21
• Subtask 4: 0 / 38
• Subtask 5: 0 / 23