Compilare: user.cpp: In function ‘int main()’: user.cpp:11:11: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] cin>>s+1; ~^~ user.cpp:22:16: warning: this ‘if’ clause does not guard... [-Wmisleading-indentation] if(d[st-1]!=inf) ^~ user.cpp:24:17: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘if’ st--; dr++; ^~