View Compilation Error

0_0_38469911_29942.cpp: In function 'int main()':
0_0_38469911_29942.cpp:72:8: error: 'll' was not declared in this scope
   for (ll l = 1, r; l <= n; l = r + 1) {
        ^
0_0_38469911_29942.cpp:72:21: error: 'l' was not declared in this scope
   for (ll l = 1, r; l <= n; l = r + 1) {
                     ^
0_0_38469911_29942.cpp:72:33: error: 'r' was not declared in this scope
   for (ll l = 1, r; l <= n; l = r + 1) {
                                 ^