Submission #916636

#TimeUsernameProblemLanguageResultExecution timeMemory
916636atomDivide and conquer (IZhO14_divide)C++17
17 / 100
1 ms604 KiB
#include "bits/stdc++.h" // @JASPER'S BOILERPLATE using namespace std; using ll = long long; #ifdef JASPER #include "debug.h" #else #define debug(...) 166 #endif const int N = 5e3 + 5; int n; int x[N], g[N], e[N]; int dp[N], fe[N], fg[N]; signed main() { cin.tie(0) -> sync_with_stdio(0); cin >> n; for (int i = 1; i <= n; ++i) cin >> x[i] >> g[i] >> e[i]; for (int i = 1; i <= n; ++i) { fg[i] = fg[i - 1] + g[i]; fe[i] = fe[i - 1] + e[i]; } for (int i = 1; i <= n; ++i) dp[i] = g[i]; for (int i = 1; i <= n; ++i) { for (int j = 1; j < i; ++j) { int req = (x[i] - x[j]); int have = (fe[i] - fe[j - 1]); if (have >= req) dp[i] = max(dp[i], dp[j] + (fg[i] - fg[j])); } } // for (int i = 1; i <= n; ++i) { // debug(i, dp[i]); // } cout << *max_element(dp + 1, dp + 1 + n) << "\n"; }
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