综合：CPM活动全周期结算

solve()

CPM campaign full-cycle settlement:
  CMP-0001: imps=250 cost=3.75 budget=10903.25 remaining=10899.5 within_budget
  CMP-0004: imps=259 cost=3.89 budget=85241.04 remaining=85237.15 within_budget
  CMP-0010: imps=261 cost=3.92 budget=42894.13 remaining=42890.21 within_budget
  CMP-0012: imps=256 cost=3.84 budget=37452.01 remaining=37448.17 within_budget
  CMP-0015: imps=264 cost=3.96 budget=49290.15 remaining=49286.19 within_budget