摘要：
E -Square Equation RootsTime Limit:5000MSMemory Limit:262144KB64bit IO Format:%I64d & %I64uSubmitStatusPracticeCodeForces 50EDescriptionA schoolboy Petya studies square equations. The equations that are included in the school curriculum, usually look simple:x2 + 2bx + c = 0whereb,care natural nu 阅读全文