Compilare: user.cpp: In function ‘int main()’: user.cpp:54:7: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for(i=1; i<=1000000; i++) ^~~ user.cpp:57:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ fout<<s; ^~~~ user.cpp:45:15: warning: unused variable ‘x’ [-Wunused-variable] int i, j, x, y; ^ user.cpp:45:18: warning: unused variable ‘y’ [-Wunused-variable] int i, j, x, y; ^