Compilare: user.c: In function ‘main’: user.c:113:3: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(input, "%d %d", &nRows, &nCols); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ user.c:129:4: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(input, "%d", &table[i][j]); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ user.c: In function ‘computeAproxAverage’: user.c:50:15: warning: ‘sum’ is used uninitialized in this function [-Wuninitialized] return sum/n; ~~~^~