Submission #147986

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
147986	2019-08-31 10:33:06	imsifile	HicCup (FXCUP4_hiccup)	C++17	100 / 100	64 ms	4288 KiB

hiccup

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#include "hiccup.h"
using namespace std;
 
char ch[1010101];
int am[1010101], scn;
 
bool isok(int N, string &S, int K){
  scn=0;
  for(int i=0; i<N; i++){
    if(S[i]=='H') ch[scn]='H', am[scn++]=0;
    if(S[i]=='C'){
      while(1){
        if(!scn || ch[scn-1]=='C') return 0;
        scn--;
        if(ch[scn]=='H') break;
        if(ch[scn]=='X' && am[scn]) return 0;
      }
      if(scn && ch[scn-1]=='X') am[scn-1]+=K;
      else ch[scn]='X', am[scn++]=K;
    }
    if(S[i]=='!'){
      if(!scn || ch[scn-1]!='X') return 0;
      am[scn-1]--;
      if(am[scn-1]<0) am[scn-1]=0;
    }
  }
  while(scn){
    scn--;
    if(ch[scn]=='H' || ch[scn]=='C') return 0;
    if(ch[scn]=='X' && am[scn]) return 0;
 
 
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• Subtask 1: 24 / 24
• Subtask 2: 76 / 76