제출 #769875

#제출 시각아이디문제언어결과실행 시간메모리
769875teokakabadze선물상자 (IOI15_boxes)C++17
0 / 100
1 ms304 KiB
#include "boxes.h" #include<bits/stdc++.h> #define f first #define s second #define pb push_back #define NN 10000007 #define pii pair<int, int> using namespace std; int n, k, a[NN], dp[NN], dp1[NN], ans, i; deque<pii> d; long long delivery(int N, int K, int L, int p[]) { n = N, k = K; for(i = 0; i < n; i++) a[i] = p[i]; sort(a, a + n); d.pb({0, -1}); for(i = 0; i < n; i++) { if(d.front().s == i - k - 1) d.pop_front(); dp[i] = 2 * a[i] + d.front().f; while(d.size() && d.front().f >= dp[i]) d.pop_front(); d.pb({dp[i], i}); } while(d.size()) d.pop_back(); d.pb({0, n}); for(i = n - 1; i >= 0; i--) { if(d.front().s == i + k + 1) d.pop_front(); dp1[i] = 2 * (L - a[i]) + d.front().f; while(d.size() && d.front().f >= dp1[i]) d.pop_front(); d.pb({dp1[i], i}); } ans = 1e18; for(i = 0; i < n; i++) ans = min(ans, dp[i] + dp1[(i + 1) % n]); return ans; }

컴파일 시 표준 에러 (stderr) 메시지

boxes.cpp: In function 'long long int delivery(int, int, int, int*)':
boxes.cpp:36:11: warning: overflow in conversion from 'double' to 'int' changes value from '1.0e+18' to '2147483647' [-Woverflow]
   36 |     ans = 1e18;
      |           ^~~~
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