View Compilation Error

0_0_17958029_30138.cpp: In function 'int main()':
0_0_17958029_30138.cpp:65:4: error: expected ';' before 'int'
    int t;
    ^
0_0_17958029_30138.cpp:66:4: error: 't' was not declared in this scope
    t=i-1;
    ^
0_0_17958029_30138.cpp:79:22: error: request for member 'size' in 'l', which is of non-class type 'std::vector<int> [50005]'
     for(int i=t;t<=l.size();t++)
                      ^