View Compilation Error

0_0_21838688_2073.cpp: In function 'int main()':
0_0_21838688_2073.cpp:165:13: error: 'i' was not declared in this scope
         for(i=0;i<nowschoollen;i++)
             ^
0_0_21838688_2073.cpp:181:13: error: 'i' was not declared in this scope
         for(i=1,t=1;i<nowschoollen;i++)
             ^
0_0_21838688_2073.cpp:199:13: error: 'i' was not declared in this scope
         for(i=0;i<nowplacelen;i++)
             ^