Compilare: user.cpp: In function ‘int main()’: user.cpp:16:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=n;i++){ ^ user.cpp:20:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=n;i++){ ^ user.cpp:21:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=i+1;j<=n&&v[ord[j]]==v[ord[i]];j++); ^ user.cpp:25:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=2;j<=n;j++){ ^ user.cpp:27:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=n&&v[ord[i]]<x;i++){ ^ user.cpp:29:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(ord[i]<j) ^ user.cpp:31:14: warning: statement has no effect [-Wunused-value] for(i;i<=n&&v[ord[i]]==x;i++){ ^ user.cpp:31:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i;i<=n&&v[ord[i]]==x;i++){ ^ user.cpp:33:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(ord[i]<j) ^ user.cpp:35:14: warning: statement has no effect [-Wunused-value] for(i;i<=n;i++){ ^ user.cpp:35:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i;i<=n;i++){ ^ user.cpp:37:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(ord[i]<j) ^