Compilare: main.cpp: In function 'int main()': main.cpp:84:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i=1; i<=M; i++) ^~~ main.cpp:88:2: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' fin.close(); ^~~