Compilare: main.cpp: In function 'int main()': main.cpp:95:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d",&n,&k); ^ main.cpp:97:40: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d",&x[i],&y[i]); ^ main.cpp: In function 'int solve(int*)': main.cpp:27:20: warning: iteration 10009 invokes undefined behavior [-Waggressive-loop-optimizations] if (f[i] == 0) ~~~^ main.cpp:26:24: note: within this loop for (i = 1 ; i <= 11000 ; i++){ ~~^~~~~~~~ main.cpp:45:20: warning: iteration 10010 invokes undefined behavior [-Waggressive-loop-optimizations] if (f[i] > 1){ ~~~^ main.cpp:43:24: note: within this loop for (i = 0 ; i <= 11000 ; i++){ ~~^~~~~~~~