View Compilation Error

0_0_18393182_18348.cpp:52:1: error: 'bitset' does not name a type
 bitset<100> can[12];
 ^
0_0_18393182_18348.cpp: In function 'void solve()':
0_0_18393182_18348.cpp:68:49: error: 'can' was not declared in this scope
                     for(int j = 0; j <= 10; ++j)can[j].reset();
                                                 ^
0_0_18393182_18348.cpp:69:21: error: 'can' was not declared in this scope
                     can[0].set(0);
                     ^