Compilare: main.cpp: In function 'void roy_floyd()': main.cpp:34:81: warning: suggest parentheses around '&&' within '||' [-Wparentheses] 34 | if (d[i][j] > d[i][k] + d[k][j] || d[i][j] == d[i][k] + d[k][j] && nr[i][j] < nr[i][k] + nr[k][j]){ main.cpp: In function 'void print_matrix(std::vector<std::vector<int> >&)': main.cpp:46:8: warning: this 'for' clause does not guard... [-Wmisleading-indentation] 46 | for(int j = 0; j < n; j ++) | ^~~ main.cpp:48:12: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for' 48 | fout << "\n"; | ^~~~