Compilare: main.c: In function 'readInput': main.c:64:5: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &N); ^~~~~~~~~~~~~~~ main.c:65:5: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &M); ^~~~~~~~~~~~~~~ main.c:70:13: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &table[i][j]); ^~~~~~~~~~~~~~~~~~~~~~~~~