AtCoder Beginner Contest 092 D - Grid Components

#include<cstdio>
#include <cmath>
using namespace std;
int main(){
    int a,b;
    scanf("%d%d",&b,&a);
    int ta = a-1;
    int tb=b-1;
    a=a-1;
    b=b-1;
    printf("%d %d\n",2+int(ceil(a/50.0))*2+int(ceil(b/50.0))*2,100);
    for(int i=1;i<=100;i++)
        printf(".");
    printf("\n");
    for(int i=1;i<=int(ceil(a/50.0));i++){
        for(int j=1;j<=100;j++){
            if(j%2==1&&ta){
                printf("#");
                ta--;
            }
            else
                printf(".");
        }
        printf("\n");
        for(int j=1;j<=100;j++)
            printf(".");
        printf("\n");
    }
    for(int i=1;i<=100;i++)
        printf("#");
    printf("\n");
    for(int i=1;i<=int(ceil(b/50.0));i++){
        for(int j=1;j<=100;j++){
            if(j%2==1&&tb){
                printf(".");
                tb--;
            }
            else
                printf("#");
        }
        printf("\n");
        for(int j=1;j<=100;j++)
            printf("#");
        printf("\n");
    }
    return 0;
}

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