Submission #574557

#	Time	Username	Problem	Language	Result	Execution time	Memory
574557		mosiashvililuka	Quality Of Living (IOI10_quality)	C++14	100 / 100	1683 ms	175488 KiB

quality

#include<bits/stdc++.h>
#include "quality.h"
int a,b,c,d,e,i,j,ii,jj,zx,xc,lef,rig,mid,f[3005][3005],H,W,jm[3005][3005],E;
int rectangle(int RR, int CC, int HH, int WW, int QQ[3001][3001]) {
    a=RR;b=CC;
    H=HH;W=WW;
    for(i=1; i<=a; i++){
        for(j=1; j<=b; j++){
            f[i][j]=QQ[i-1][j-1];
        }
    }
    lef=0;rig=a*b+1;
    while(1){
        if(lef+1>=rig) break;
        mid=(lef+rig)/2;
        for(i=1; i<=a; i++){
            for(j=1; j<=b; j++){
                if(f[i][j]<=mid){
                    jm[i][j]=1;
                }else{
                    jm[i][j]=0;
                }
            }
        }
        for(i=1; i<=a; i++){
            for(j=1; j<=b; j++){
                jm[i][j]+=jm[i-1][j]+jm[i][j-1]-jm[i-1][j-1];
            }
        }
        E=0;
        for(i=H; i<=a; i++){
            for(j=W; j<=b; j++){
                zx=jm[i][j]-jm[i-H][j]-jm[i][j-W]+jm[i-H][j-W];
                xc=(H*W)/2+1;
                if(zx>=xc) E=1;
            }
        }
        if(E==1){
            rig=mid;
        }else{
            lef=mid;
        }
    }
    return rig;
}

• Subtask 1: 20 / 20
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 20 / 20
• Subtask 5: 20 / 20