Compilare: main.cpp: In function 'int main()': main.cpp:72:42: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d%d%d%d",&t,&n,&m,&l,&c); ^ main.cpp:74:22: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&k); ^ main.cpp:76:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d%d",&x,&y,&r); ^ main.cpp:80:22: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&g); ^ main.cpp:82:29: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&x,&y); ^ main.cpp:92:29: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&x,&y); ^ main.cpp: In function 'void vulpe(int, int, int)': main.cpp:33:31: warning: iteration 4 invokes undefined behavior [-Waggressive-loop-optimizations] if(inside(x+l1[k],y+c1[k])) ~~~~^ main.cpp:32:18: note: within this loop for(int k=0;k<8;k++){ ~^~