0_0_17462175_25691.cpp: In function 'int main()': 0_0_17462175_25691.cpp:23:13: error: redeclaration of 'int i' int i = 0; ^ 0_0_17462175_25691.cpp:16:14: note: 'int i' previously declared here for(int i=1;i<=t;i++) ^