Submission #376278

#	Time	Username	Problem	Language	Result	Execution time	Memory
376278		Halogen	Bigger segments (IZhO19_segments)	C++14	0 / 100	1 ms	364 KiB

segments

#include <bits/stdc++.h>

using namespace std;

#define int long long

int N, presum[500005];

main() {
    scanf("%lld", &N);
    for (int i = 1; i <= N; i++) scanf("%lld", &presum[i]);
    for (int i = 2; i <= N; i++) presum[i] += presum[i - 1];

    int ans = 0, x = 0;
    while (x < N) {
        x = lower_bound(presum + 1, presum + N + 1, presum[x] + presum[x]) - presum;
        ans++;
        // printf("%lld\n", x);
    }
    if (x > N) ans--;

    printf("%lld\n", ans);
}

Compilation message (stderr)

segments.cpp:9:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    9 | main() {
      |      ^
segments.cpp: In function 'int main()':
segments.cpp:10:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   10 |     scanf("%lld", &N);
      |     ~~~~~^~~~~~~~~~~~
segments.cpp:11:39: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   11 |     for (int i = 1; i <= N; i++) scanf("%lld", &presum[i]);
      |                                  ~~~~~^~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 13
• Subtask 2: 0 / 14
• Subtask 3: 0 / 10
• Subtask 4: 0 / 36
• Subtask 5: 0 / 27