Compilare: user.cpp: In function ‘int main()’: user.cpp:55:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 1; j < P[i].size(); ++ j) ^ user.cpp:59:49: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] int Right = (j == P[i].size() - 1 ? N - P[i][j] : P[i][j + 1] - P[i][j] - 1); ^ user.cpp:65:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 1; j < P[i].size(); ++ j) Clear(j + 1 - (P[i][j] - j) + N + 1); ^