题目链接:1066 图像过滤
#include <iostream>
using namespace std;
int main(){
int M,N,A,B,R,a;
cin >> M >> N >> A >> B >> R;
for(int i=0;i<M;i++){
for(int j=0;j<N;j++){
scanf("%d",&a);//scanf替代cin防止超时
if(a >= A && a <= B) printf("%03d",R);
else printf("%03d",a);
if(j != N - 1) printf(" ");
}
printf("\n");
}
}