View Compilation Error

0_0_15039357_13091.cpp: In function 'int main()':
0_0_15039357_13091.cpp:70:32: error: expected '}' at end of input
             su+=sum(b,a[i-m]-1);
                                ^
0_0_15039357_13091.cpp:70:32: error: expected '}' at end of input
0_0_15039357_13091.cpp:70:32: error: expected '}' at end of input