Compilare: user.cpp: In function ‘bool cuplaj(int)’: user.cpp:16:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0 ; i < v[knot].size(); i ++) { ^ user.cpp:24:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0 ; i < v[knot].size(); i ++) { ^ user.cpp: In function ‘int main()’: user.cpp:44:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (w[i].size() == r) { ^ user.cpp:45:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < w[i].size(); j ++) { ^ user.cpp:66:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (w [stanga[i]].size() == r-1 || (w[i].size() == r && w[stanga[i]].size() == r && i < stanga[i]) ){ ^ user.cpp:66:59: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (w [stanga[i]].size() == r-1 || (w[i].size() == r && w[stanga[i]].size() == r && i < stanga[i]) ){ ^ user.cpp:66:88: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (w [stanga[i]].size() == r-1 || (w[i].size() == r && w[stanga[i]].size() == r && i < stanga[i]) ){ ^ user.cpp:72:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (w [stanga[i]].size() == r-1 || (w[i].size() == r && w[stanga[i]].size() == r && i < stanga[i]) ) { ^ user.cpp:72:62: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (w [stanga[i]].size() == r-1 || (w[i].size() == r && w[stanga[i]].size() == r && i < stanga[i]) ) { ^ user.cpp:72:91: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (w [stanga[i]].size() == r-1 || (w[i].size() == r && w[stanga[i]].size() == r && i < stanga[i]) ) { ^