Submission #1050987

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1050987	2024-08-09 17:42:59	manhlinh1501	Sterilizing Spray (JOI15_sterilizing)	C++17	10 / 100	48 ms	6236 KiB

sterilizing

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#include <bits/stdc++.h>
using namespace std;
using i64 = long long;
const int MAXN = 1e5 + 5;
int N, Q, K;
i64 a[MAXN];
struct segment_tree {
    int N;
    i64 tree[MAXN * 4];
    void build(int id, int l, int r) {
        if(l == r) {
            tree[id] = a[r];
            return;
        }
        int m = (l + r) / 2;
        build(id * 2, l, m);
        build(id * 2 + 1, m + 1, r);
        tree[id] = tree[id * 2] + tree[id * 2 + 1];
    }
    void init(int _N) {
        N = _N;
        build(1, 1, N);
    }
    void update(int id, int l, int r, int u, int v) {
        if(r < u or l > v) return;
 
 
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Compilation message (stderr)

sterilizing.cpp: In function 'int main()':
sterilizing.cpp:82:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   82 |         freopen(TASK ".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
sterilizing.cpp:83:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   83 |         freopen(TASK ".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 5
• Subtask 2: 10 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 75