12882 - Patrick and Spongebob in Tentacle Acres

#include <stdio.h>

int main(){
    int arr[500][500] = {0};
    int n, m;// row, col
    scanf("%d%d", &n, &m);
    for(int i = 1; i <= n; i++){
        for(int j = 1; j <= m; j++){
            scanf("%d", &arr[i][j]); //scan arr
        }
    }
    int q; //queries
    scanf("%d", &q);
    for(int i = 0; i < q; i++){
        int value = 0;
        int u, d, l, r; //up down left right
        scanf("%d %d %d %d", &u, &d, &l, &r);
        for(int j = u; j <= d; j++){
            for(int k = l; k <= r; k++){
                if( value < arr[j][k]){
                    value = arr[j][k];
                    //if value < than the array at that point
                    //then change the value to the largest num
                }
            }
        }
        printf("%d\n", value);
    }
    return 0;
}