Compilare: user.cpp: In function ‘void lee()’: user.cpp:49:144: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if (mtr[lvec][cvec] != -1 && (traseu[lvec][cvec] == 0 || (traseu[lvec][cvec] == 0 || (traseu[lact][cact] < traseu[lvec][cvec]) && mtr[lact][cact] == mtr[lvec][cvec]) || traseu[lact][cact] + produs[mtr[lact][cact]][mtr[lvec][cvec]] < traseu[lvec][cvec])) { ^ user.cpp:56:67: warning: narrowing conversion of ‘traseu[lvec][cvec]’ from ‘long long int’ to ‘int’ inside { } [-Wnarrowing] coada.push((poz){lvec, cvec, traseu[lvec][cvec]}); ^ user.cpp: In function ‘int main()’: user.cpp:68:15: warning: unused variable ‘k’ [-Wunused-variable] int i, j, k; ^