Ejercicio 18.4

#include <stdio.h>
#define N 4
void matriz();
void puntosilla();
int main(){
    int mat[N][N];
    matriz(mat);
}
void matriz(int mat[N][N]){
    printf("Dame la matriz %dx%d:\n",N,N);
    for (int i = 0; i < N; i++){
        for (int j = 0; j < N; j++){
            scanf("%d",&mat[i][j]);
        }
    }
    for (int i = 0; i < N; i++){
        for (int j = 0; j < N; j++){
            printf("%d\t",mat[i][j]);
        }printf ("\n");
    }
    int maxcolumna[N] = {-999, -999, -999, -999};
    int minfila[N] = {999, 999, 999, 999};
    for (int i = 0; i < N; i++){
        for (int j = 0; j < N; j++){
            if (mat[i][j] < minfila[i]){
                minfila[i] = mat[i][j];
            }
            if (mat[i][j] > maxcolumna[j]){
                maxcolumna[j] = mat[i][j];
            }
        }
    }
    for (int i = 0; i < N; i++){
        for (int j = 0; j < N; j++){
            if (minfila[i] == maxcolumna[j]){
                printf("Punto de silla en la posición %d,%d\n",i+1,j+1);
            }
        }
    }
}