View Compilation Error

0_0_18039742_14474.cpp: In function 'int main(int, char**)':
0_0_18039742_14474.cpp:57:3: error: 'i' was not declared in this scope
 c[i]=c[i-1]+b[i];
   ^
0_0_18039742_14474.cpp: At global scope:
0_0_18039742_14474.cpp:61:1: error: expected unqualified-id before 'while'
 while(t--){
 ^
0_0_18039742_14474.cpp:74:1: error: expected unqualified-id before 'return'
 return 0;
 ^
0_0_18039742_14474.cpp:75:1: error: expected declaration before '}' token
 }
 ^