Compilare: user.cpp: In function ‘void royfloyd()’: user.cpp:15:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(a[i][k] && a[k][j] && (a[i][j]>=a[i][k]+a[k][j] || !a[i][j]) &&i!=j) ^ user.cpp: In function ‘int main()’: user.cpp:40:9: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for (int j=1; j<=n; j++) ^~~ user.cpp:42:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ g<<"\n"; ^ user.cpp:46:9: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for (int j=1; j<=n; j++) ^~~ user.cpp:48:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ g<<"\n"; ^