Compilare: user.cpp: In function ‘void citire()’: user.cpp:45:9: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for(i=1; i<=N; i++) ^~~ user.cpp:54:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ roy_warshall(); ^~~~~~~~~~~~ user.cpp:33:19: warning: unused variable ‘x’ [-Wunused-variable] int k,j,a,b,i,x; ^