Submission #1139710

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1139710	2025-01-25 11:16:58	Kerim	XOR Sum (info1cup17_xorsum)	C++20	56 / 100	1693 ms	13228 KiB

xorsum

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#include "bits/stdc++.h"
#define ff first
#define ss second
#define ll long long
using namespace std;
const int N = 1e6+5;
int a[N];
vector<int> val[2];
ll uly(vector<int> &A, vector<int> &B, int K){
    ll cnt = 0;
    int sz = (int)B.size() - 1;
    int p = sz;
    for (auto x: A){
        while (p >= 0 and x+B[p]>=K)
            p -= 1;
        cnt += sz - p;
    }
    return cnt;
}
ll kici(vector<int> &A, vector<int> &B, int K){
    return (ll)A.size()*(ll)B.size() - uly(A, B, K);
}
int main(){
    // freopen("file.in", "r", stdin);
    int n;
    scanf("%d", &n);
    for (int i = 0; i < n; i++)
        scanf("%d", a+i);
    vector<pair<int,int> > tries{{0,0}, {1,1}, {0, 1}};
    int ans = 0;
 
 
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Compilation message (stderr)

xorsum.cpp: In function 'int main()':
xorsum.cpp:26:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   26 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
xorsum.cpp:28:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   28 |         scanf("%d", a+i);
      |         ~~~~~^~~~~~~~~~~

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