Compilare: user.cpp: In function ‘int vf(int, int, int)’: user.cpp:119:21: warning: unused variable ‘c’ [-Wunused-variable] int f=(poz-1)/B,c; ^ user.cpp: In function ‘int main()’: user.cpp:154:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=n;i++) ~^~~ user.cpp:161:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=n;i++) ~^~~ user.cpp:168:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=m;i++) ~^~~