#include <stdio.h>

int main() {
    int v[3][3];
    int maior = -1000000000;
    for(int i=0; i<3; i++){
        for(int j=0;j<3; j++){
            scanf("%d", &v[i][j]);
            if(v[i][j]>maior){
                maior=v[i][j];
            }
        }
    }
    for(int i=0; i<3; i++){
        for(int j=0; j<3; j++){
            if(v[i][j]==maior){
                v[i][j]=-1;
            }
            printf("%d ", v[i][j]);
        }
        printf("\n");
    }
    
    return 0;
}

Embed on website

To embed this project on your website, copy the following code and paste it into your website's HTML: