Compilare: user.cpp: In function ‘int interclasare(int, int, int)’: user.cpp:13:22: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(a[x]<=a[y]&&x<=m||(y>u&&x<=m)) ^ user.cpp:16:22: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(a[y]<=a[x]&&y<=u||(x>m&&y<=u)) ^ user.cpp:7:25: warning: unused variable ‘cnt’ [-Wunused-variable] int i,v[500005],x,y,cnt; ^ user.cpp:21:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int divide(int, int)’: user.cpp:44:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:47:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("algsort.in","r",stdin); ^ user.cpp:48:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("algsort.out","w",stdout); ^ user.cpp:49:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:50:40: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(i=1;i<=n;i++) scanf("%d",&a[i]); ^