View Compilation Error

0_0_38339923_3616.cpp: In function 'void solve()':
0_0_38339923_3616.cpp:49:21: error: 'lcm' was not declared in this scope
             i64 l = lcm<i64>(a[t][c], a[i][c]);
                     ^
0_0_38339923_3616.cpp:49:28: error: expected primary-expression before '>' token
             i64 l = lcm<i64>(a[t][c], a[i][c]);
                            ^