Compilare: main.cpp: In function 'int main()': main.cpp:15:1: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=0;i<=n-k;i++) ^~~ main.cpp:18:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' return 0; ^~~~~~ main.cpp:7:7: warning: unused variable 'j' [-Wunused-variable] int i,j,n,k,c=0; ^