Compilare: user.cpp: In function ‘int main()’: user.cpp:121:10: warning: iteration 249u invokes undefined behavior [-Waggressive-loop-optimizations] if(pl[i]!=0) ^ user.cpp:120:2: note: containing loop for(i=1;i<=2500;i++) ^ user.cpp:100:10: warning: iteration 249u invokes undefined behavior [-Waggressive-loop-optimizations] pl[i]=0; ^ user.cpp:99:2: note: containing loop for(i=1;i<=2500;i++) ^