Compilare: main.cpp: In function 'int main()': main.cpp:21:1: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i=1;i<=nr1;i++) ^~~ main.cpp:23:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' return 0; ^~~~~~