Compilare: user.cpp: In function ‘bool solve()’: user.cpp:45:3: warning: this ‘if’ clause does not guard... [-Wmisleading-indentation] if(viz[a[i - 1] - mi + 1] - viz[a[i] - mi] < a[i - 1] - a[i] + 1) ^~ user.cpp:47:4: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘if’ viz[a[i] - mi + 1] = viz[a[i] - mi] + 1; ^~~ user.cpp: At global scope: user.cpp:52:6: warning: ISO C++ forbids declaration of ‘main’ with no type [-Wreturn-type] main() ^