제출 #70736

#제출 시각아이디문제언어결과실행 시간메모리
70736Sa1378팀들 (IOI15_teams)C++17
34 / 100
4083 ms17344 KiB
#include "teams.h" #include <bits/stdc++.h> using namespace std; #define N ((int)101*1000) #define K ((int)22) #define SQ ((int)500) int n,pos[N]; pair <int,int> a[N]; int seg[K][N]; void build(int xl=0,int xr=n,int h=0) { if(xl==xr-1) { seg[h][xl]=a[xl].second; return ; } int mid=(xl+xr)/2; build(xl,mid,h+1); build(mid,xr,h+1); merge(seg[h+1]+xl,seg[h+1]+mid,seg[h+1]+mid,seg[h+1]+xr,seg[h]+xl); } int query(int q,int val,int xl=0,int xr=n,int h=0) { if(xr<=q)return xr-(lower_bound(seg[h]+xl,seg[h]+xr,val)-seg[h]); int mid=(xl+xr)/2; int res=query(q,val,xl,mid,h+1); if(mid<q)res+=query(q,val,mid,xr,h+1); return res; } void init(int n2, int A[], int B[]) { n=n2; for(int i=0;i<n;i++)a[i]={A[i],B[i]}; sort(a,a+n); for(int i=1,j=0;i<=n;i++) { while(j<n && a[j].first<=i)j++; pos[i]=j; } build(); } pair <int,int> b[N]; int cnt[SQ][SQ]; int can(int m, int k[]) { int m2=0,sum=0; sort(k,k+m); for(int i=0;i<m;i++)sum+=k[i]; if(sum>n)return 0; for(int i=0;i<m;) { b[m2]={k[i],0}; while(i<m && k[i]==b[m2].first)b[m2].second+=k[i],i++; m2++; } m=m2; for(int i=0;i<m;i++) for(int j=i;j<m;j++) cnt[i][j]=query(pos[b[i].first],b[j].first)-((j<m-1)?query(pos[b[i].first],b[j+1].first):0)-((i>0)?query(pos[b[i-1].first],b[j].first):0)+((i>0 && j<m-1)?query(pos[b[i-1].first],b[j+1].first):0); for(int i=0;i<m;i++) { for(int j=i;j<m && b[i].second;j++) { int x=min(b[i].second,cnt[i][j]); b[i].second-=x; cnt[i][j]-=x; } if(b[i].second)return 0; for(int j=0;j<m;j++)cnt[i+1][j]+=cnt[i][j]; } return 1; }

컴파일 시 표준 에러 (stderr) 메시지

teams.cpp: In function 'int query(int, int, int, int, int)':
teams.cpp:27:20: warning: conversion to 'int' from 'long int' may alter its value [-Wconversion]
  if(xr<=q)return xr-(lower_bound(seg[h]+xl,seg[h]+xr,val)-seg[h]);
                  ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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