제출 #515448

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
515448		79brue	3단 점프 (JOI19_jumps)	C++14	0 / 100	4042 ms	964 KiB

jumps

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

int n, q;
int arr[500002];
int DP[5002][5002];
int DPmax[5002][5002];

int main(){
    scanf("%d", &n);
    for(int i=1; i<=n; i++) scanf("%d", &arr[i]);

    scanf("%d", &q);
    while(q--){
        int l, r;
        scanf("%d %d", &l, &r);
        int ans = 0;

        for(int b=l+1; b<r; b++){
            int aMax = 0, aVal = -1;
            for(int a=max(l, 2*b-r); a<b; a++){
                if(aVal <= arr[a]) aMax = a, aVal = arr[a];
            }
            for(int c=b+1; c<=r; c++) if(b-aMax <= c-b) ans = max(ans, arr[aMax] + arr[b] + arr[c]);

            int cMax = 0, cVal = -1;
            for(int c=b+1; c<=r; c++){
                if(cVal <= arr[c]) cMax = c, cVal = arr[c];
            }
            for(int a=l; a<b; a++) if(b-a <= cMax-b) ans = max(ans, arr[a] + arr[b] + arr[cMax]);
        }
        printf("%d\n", ans);
    }
}

컴파일 시 표준 에러 (stderr) 메시지

jumps.cpp: In function 'int main()':
jumps.cpp:13:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
jumps.cpp:14:34: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |     for(int i=1; i<=n; i++) scanf("%d", &arr[i]);
      |                             ~~~~~^~~~~~~~~~~~~~~
jumps.cpp:16:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |     scanf("%d", &q);
      |     ~~~~~^~~~~~~~~~
jumps.cpp:19:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   19 |         scanf("%d %d", &l, &r);
      |         ~~~~~^~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 14
• Subtask 3: 0 / 27
• Subtask 4: 0 / 54