Compilare: main.cpp: In function 'int main()': main.cpp:76:27: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=] printf("%d\n",ans-ans1); ^ main.cpp:27:33: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("dif2.in","r",stdin); ^ main.cpp:28:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("dif2.out","w",stdout); ^ main.cpp:31:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&cer,&n); ^ main.cpp:33:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%lld",&p1,&p2); ^ main.cpp:35:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v[i]); ^ main.cpp:76:11: warning: 'ans' may be used uninitialized in this function [-Wmaybe-uninitialized] printf("%d\n",ans-ans1); ~~~~~~^~~~~~~~~~~~~~~~~ main.cpp:76:11: warning: 'ans1' may be used uninitialized in this function [-Wmaybe-uninitialized]