제출 #1119222

#제출 시각아이디문제언어결과실행 시간메모리
1119222Newtonabc선물상자 (IOI15_boxes)C++14
0 / 100
2 ms2644 KiB
#include "boxes.h" #include<bits/stdc++.h> using namespace std; const int N=1e7+10; long long dpa[N],dpb[N]; int n,k,l; long long delivery(int N, int K, int L, int p[]) { n=N,k=K,l=L; for(int i=0;i<n;i++){ int j=n-i-1; if(i-k>=0) dpa[i]=dpa[i-k]+2LL*(long long)p[i]; else dpa[i]=2LL*(long long)p[i]; if(j+k<n) dpb[j]=dpb[j+k]+2LL*(long long)(l-p[j]); else dpb[j]=2LL*(long long)(l-p[j]); } long long ans=min(dpa[n-1],dpb[0]); for(int i=0;i+k-1<n;i++){ int j=i+k-1; ans=min(ans,(i-1>=0?dpa[i-1]:0LL)+l+(j+1<n?dpb[j+1]:0LL)); } return ans; }

컴파일 시 표준 에러 (stderr) 메시지

boxes.cpp: In function 'long long int delivery(int, int, int, int*)':
boxes.cpp:7:24: warning: declaration of 'N' shadows a global declaration [-Wshadow]
    7 | long long delivery(int N, int K, int L, int p[]) {
      |                    ~~~~^
boxes.cpp:4:11: note: shadowed declaration is here
    4 | const int N=1e7+10;
      |           ^
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