View Compilation Error

0_0_16246411_26600.cpp: In function 'int main()':
0_0_16246411_26600.cpp:76:17: error: 'cnt' was not declared in this scope
                 cnt[a[l]]--;  
                 ^
0_0_16246411_26600.cpp:83:17: error: 'cnt' was not declared in this scope
                 cnt[a[r]]--;  
                 ^
0_0_16246411_26600.cpp:92:28: error: 'cnt' was not declared in this scope
                     cur += cnt[k-a[l]];  
                            ^
0_0_16246411_26600.cpp:93:17: error: 'cnt' was not declared in this scope
                 cnt[a[l]]++;  
                 ^
0_0_16246411_26600.cpp:99:28: error: 'cnt' was not declared in this scope
                     cur += cnt[k-a[r]];  
                            ^
0_0_16246411_26600.cpp:100:17: error: 'cnt' was not declared in this scope
                 cnt[a[r]]++;  
                 ^
0_0_16246411_26600.cpp: At global scope:
0_0_16246411_26600.cpp:156:2: error: expected unqualified-id before 'return'
  return 0;
  ^
0_0_16246411_26600.cpp:157:1: error: expected declaration before '}' token
 }
 ^