Compilare: main.cpp: In function 'bool cmp(intt, intt)': main.cpp:12:7: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if(x.s==y.s) ^ main.cpp: In function 'int main()': main.cpp:23:17: warning: unused variable 'ma' [-Wunused-variable] int n,i,a,b,ma=0,x; ^~ main.cpp:23:22: warning: unused variable 'x' [-Wunused-variable] int n,i,a,b,ma=0,x; ^ main.cpp:21:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("gramezi.in","r",stdin); ^ main.cpp:22:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("gramezi.out","w",stdout); ^ main.cpp:24:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ main.cpp:27:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&a,&b); ^