View Compilation Error

0_0_23736541_9416.cpp: In function 'int main()':
0_0_23736541_9416.cpp:5:5: error: expected initializer before numeric constant
     50 dp[51];
     ^
0_0_23736541_9416.cpp:6:5: error: 'dp' was not declared in this scope
     dp[1] = 1;
     ^