View Compilation Error

0_0_38579827_23590.cpp: In function 'void add2(int, int)':
0_0_38579827_23590.cpp:39:13: error: 'mp' was not declared in this scope
             mp.push_back(i * N + j);
             ^~
0_0_38579827_23590.cpp:39:13: note: suggested alternative: 'm'
             mp.push_back(i * N + j);
             ^~
             m
0_0_38579827_23590.cpp: In function 'int main()':
0_0_38579827_23590.cpp:46:9: error: 'mp' was not declared in this scope
         mp.clear();
         ^~
0_0_38579827_23590.cpp:46:9: note: suggested alternative: 'm'
         mp.clear();
         ^~
         m