Main.cc: In function 'int main()': Main.cc:5:8: error: 'i' was not declared in this scope for(i=1<=100;i++){ ^ Main.cc:5:20: error: expected ';' before ')' token for(i=1<=100;i++){ ^ Main.cc:4:8: warning: unused variable 't' [-Wunused-variable] int t; ^