Compilare: main.cpp: In function 'int main()': main.cpp:11:49: warning: unused variable 'rez' [-Wunused-variable] int n, m, mine, cer, i, j, x, y, nr_lat, max, rez, l, c, k; ^~~ main.cpp:14:49: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d%d%d", &cer, &n, &m, &mine ); ^ main.cpp:16:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d", &x, &y ); ^