#include <stdio.h>

int main() {
    float mat[10][10]; #metti roba definita
    int r, c;

    FILE *fpIN;

    fpIN=fopen("input.txt","r");
    fscanf(fpIN, "%d %d", &r, &c);

    for (int i=0; i<r; i++)
        for (int j=0; j<c; j++)
            fscanf(fpIN,"%f",&mat[i][j]);

    fclose(fpIN);

    printf("\nMatrice letta da file:\n");
    for (int i=0; i<r; i++){
        for (int j=0; j<c; j++)
            printf("%f\t",mat[i][j]);
        printf("\n");
    }
}


input.txt
3 3
0.33 0.456 1.23
1.33 2.456 6.23
4.33 4.456 5.23