Compilare: main.cpp: In function 'int main()': main.cpp:15:59: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d%d%d%d%d", &n, &m, &pl, &pc, &cl, &cc); ^ main.cpp:18:64: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] for (int j = 1; j <= m; ++j) fscanf(in, "%d", &a[i][j]); ^