Submission #44772

#	Time	Username	Problem	Language	Result	Execution time	Memory
44772		choikiwon	Skyline (IZhO11_skyline)	C++17	0 / 100	43 ms	48876 KiB

skyline

#include<bits/stdc++.h>
using namespace std;

int N;
int H[302];

int cc[302][202][202];
int dp(int n, int c1, int c2) {
    int &ret = cc[n][c1][c2];
    if(ret != -1) return ret;

    ret = 1e9;
    int add = c1 > c2? (c1 - c2) * 3 : 0;

    for(int i = 0; i <= min(min(c1, c2), H[n + 2]); i++) {
        int j = min(c1, c2) - i;

        ret = min(ret, add + 7 * i + 5 * j + dp(n + 1, c2 - i - j, H[n + 2] - i));
    }
    return ret;
}

int main() {
    scanf("%d", &N);

    for(int i = 0; i < N; i++) {
        scanf("%d", &H[i]);
    }

    memset(cc, -1, sizeof(cc));
    printf("%d", dp(0, H[0], H[1]));
}

Compilation message (stderr)

skyline.cpp: In function 'int main()':
skyline.cpp:24:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &N);
     ~~~~~^~~~~~~~~~
skyline.cpp:27:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &H[i]);
         ~~~~~^~~~~~~~~~~~~

• Subtask 1: 0 / 100