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不用中国剩余定理,不用暴力枚举,16ms过的一个代码。#include<stdio.h> int main() { int p,e,i,k,d,t,r,x; x=0; while(scanf("%d %d %d %d",&p,&e,&i,&d) && p!=-1) { x++; p=p%23; e=e%28; i=i%33; t=e-p; k=0; while(t%23!=0) { k++; t+=5; } t=e+k*28; r=t-i; k=0; while(r%33!=0) { k++; r+=611; } r=t+k*644; if(r>d) r=r-d; else r=r+21252-d; printf("Case %d: the next triple peak occurs in %d days.\n",x,r); } return 0; } Followed by:
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