题目地址:POJ 3273
水题。居然错了两次,sad、、
代码如下:
#include <iostream> #include <string.h> #include <math.h> #include <queue> #include <algorithm> #include <stdlib.h> #include <map> #include <set> #include <stdio.h> using namespace std; #define LL __int64 #define pi acos(-1.0) const int mod=9901; const int INF=0x3f3f3f3f; const double eqs=1e-8; int a[110000]; int main() { int n, m, i, cnt, sum; while(scanf("%d%d",&n,&m)!=EOF) { for(i=0; i<n; i++) { scanf("%d",&a[i]); } int low=0, high=1e9, mid, ans; while(low<=high) { mid=low+high>>1; cnt=1; sum=0; for(i=0; i<n; i++) { if(a[i]>mid) { cnt=m+1; break; } if(sum+a[i]>mid) { sum=a[i]; cnt++; } else sum+=a[i]; if(cnt>m) break; } if(cnt<=m) { ans=mid; high=mid-1; } else low=mid+1; } printf("%d\n",ans); } return 0; }
原文地址:http://blog.csdn.net/scf0920/article/details/43059649