Submission #58738

#	Time	Username	Problem	Language	Result	Execution time	Memory
58738		leejseo	오렌지 출하 (JOI16_ho_t1)	C++98	70 / 100	49 ms	46464 KiB

2016_ho_t1

#include <bits/stdc++.h>
using namespace std;
typedef long long lld;
const lld UNDEF = 1LL << 60;
const int MAXN = 2000;
int N, M;
lld K, A[MAXN+1], B[MAXN+1][MAXN+1], C[MAXN+1][MAXN+1], D[MAXN+1];

void input(){
    scanf("%d%d%lld", &N, &M, &K);
    for (int i=0; i<N; i++) scanf("%lld", &A[i+1]);
}

void init(){
    for (int i=1; i<=N; i++){
        C[i][i] = A[i];
        B[i][i] = A[i];
        for (int j=i+1; j<=N; j++) B[i][j] = max(B[i][j-1], A[j]);
        for (int j=i+1; j<=N; j++) C[i][j] = min(C[i][j-1], A[j]);
    }
}

void DP(){
    D[0] = 0;
    for (int i=1; i<=N; i++){
        D[i] = D[i-1]+K;
        for (int k=max(1, i-M+1); k<i; k++){
            D[i] = min(D[i], D[k-1] + K + (i-k+1) * (B[k][i] - C[k][i]));
        }
    }
    printf("%lld\n", D[N]);
}

int main(){
    input();
    init();
    DP();
}

Compilation message (stderr)

2016_ho_t1.cpp: In function 'void input()':
2016_ho_t1.cpp:10:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d%lld", &N, &M, &K);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
2016_ho_t1.cpp:11:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for (int i=0; i<N; i++) scanf("%lld", &A[i+1]);
                             ~~~~~^~~~~~~~~~~~~~~~~

• Subtask 1: 20 / 20
• Subtask 2: 50 / 50
• Subtask 3: 0 / 30