제출 #376307

#제출 시각아이디문제언어결과실행 시간메모리
376307HalogenBigger segments (IZhO19_segments)C++14
0 / 100
142 ms262144 KiB
#include <bits/stdc++.h> using namespace std; int N; long long presum[505]; int memo[505][505][505]; int dp(int x, int y, int z) { if (memo[x][y][z] != -1) return memo[x][y][z]; int ans = 0; if (x >= N) { if (presum[x] - presum[z - 1] >= 0) return ans = 0; else return - N - 10; } else if (presum[x] - presum[z - 1] < 0) return memo[x][y][z] = dp(x + 1, y, z); else return memo[x][y][z] = max( dp(x + 1, y, z), 1 + dp(x + 1, x, z) ); } main() { scanf("%d", &N); memset(memo, -1, sizeof(memo)); memset(presum, 0, sizeof(presum)); for (int i = 1; i <= N; i++) scanf("%lld", &presum[i]); for (int i = 2; i <= N; i++) presum[i] += presum[i - 1]; printf("%d\n", dp(1, 0, 0)); }

컴파일 시 표준 에러 (stderr) 메시지

segments.cpp:26:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   26 | main() {
      |      ^
segments.cpp: In function 'int main()':
segments.cpp:27:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   27 |     scanf("%d", &N);
      |     ~~~~~^~~~~~~~~~
segments.cpp:30:39: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   30 |     for (int i = 1; i <= N; i++) scanf("%lld", &presum[i]);
      |                                  ~~~~~^~~~~~~~~~~~~~~~~~~~
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