Compilare: main.cpp: In function 'long long int r(long long int)': main.cpp:13:9: warning: this 'while' clause does not guard... [-Wmisleading-indentation] while(j && v[i]+v[j]>m) ^~~~~ main.cpp:14:14: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'while' --j; nr=nr+j; ^~ main.cpp: In function 'int main()': main.cpp:20:17: warning: unused variable 'c' [-Wunused-variable] long long i,c=0,j,msk,pos=0; ^ main.cpp:20:21: warning: unused variable 'j' [-Wunused-variable] long long i,c=0,j,msk,pos=0; ^