Compilare: main.cpp: In function 'int main()': main.cpp:23:13: warning: unused variable 'x' [-Wunused-variable] int x,y; ^ main.cpp:23:15: warning: unused variable 'y' [-Wunused-variable] int x,y; ^ main.cpp:16:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("branza.in","r",stdin); ^ main.cpp:17:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("branza.out","w",stdout); ^ main.cpp:19:37: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lli %lli %lli",&n,&s,&t); ^ main.cpp:24:39: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lli %lli",&c[i],&p[i]); ^