T^T

T T “T “T T T^T T^T T T T^T T^T T^T T^T T T while(*t)t++; t--; T.....T.T.. 求大神救我!T^T T^T T^T 13-20t+4t*t*t-20t*t*t*t=0,求t? L,M,t,T.