24 lines
416 B
C
24 lines
416 B
C
#include <stdio.h>
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int main(){
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int paper[100][100]={0,};
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int n, x, y, sum=0;
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scanf("%d",&n);
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while(n--){
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scanf("%d %d",&x, &y);
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for(int i=x-1; i<x+9; i++){
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for(int j=y-1; j<y+9; j++){
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if(paper[i][j]!=1){
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sum++;
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paper[i][j]=1;
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}
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}
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}
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}
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printf("%d",sum);
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return 0;
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} |