#include <stdio.h>
#define MAX 100;

void le_matriz(double M[][MAX], int n, int m){
    for(int i = 0; i < n; i++){
        for(int j = 0; j < m; j++){
            scanf("%lf", &M[i][j]);
        }
    }    
}

void imprime_matriz(double M[][MAX], int n, int m){
    for(int i = 0; i < n; i++){
        for(int j = 0; j < m; j++){
                printf("%.lf ", M[i][j]);
        }
    }    
}

void nova_matriz(double M[][MAX], int m, int pos_i, int pos_j){
    for(int i = 0; i < m; i++){
        double aux = M[pos_i][j];

        M[pos_i][j] = M[pos_j][j];
        M[pos_j][j] = temp;
        
    }
    
}

int main() {
    printf("Hello world!\n");
    return 0;
}

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