Submission #41346

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Source Code Expand

#include <cstdio>
#include <cstring>
#include <algorithm>
#include <vector>
using namespace std;

#define REPN(i, a, b) for(int i = (int)(a); i < (int)(b); i++)
#define REP(i, n) REPN(i, 0, n)
#define FOR(i, c) for(__typeof((c).begin()) i = (c).begin(); i != (c).end(); i++)
#define ALL(v) (v).begin(), (v).end()

char buf[1000];
char suit_[] = "SHDC";

bool check(bool f[]) {
  return f['1'] && f['J'] && f['Q'] && f['K'] && f['A'];
}

int main() {

  gets(buf);
  int len = strlen(buf);
  char cards[4][1000];

  int min_drop = 1000000, idx = -1;  
  bool flags[256] = {false};
  
  for(int st = 0; st < 4; st++) {
    char suit = suit_[st];
    int t = 0;
    memset(flags, false, sizeof(flags));

    int drop = 0;
    for(int p = 0; p < len; ) {

      if(buf[p] != suit) {
        drop++;
        if(buf[p + 1] == '1') {
          cards[st][t] = buf[p];
          cards[st][t + 1] = buf[p + 1];
          cards[st][t + 2] = buf[p + 2];
          t += 3; p += 3;
        } else {
          cards[st][t] = buf[p];
          cards[st][t + 1] = buf[p + 1];
          t += 2; p += 2;
        }
      }else{
        if(buf[p + 1] == '1' ||
           buf[p + 1] == 'J' ||
           buf[p + 1] == 'Q' ||
           buf[p + 1] == 'K' ||
           buf[p + 1] == 'A') {

          flags[(int)buf[p + 1]] = true;
          if(check(flags)) break;
          p += buf[p + 1] == '1' ? 3 : 2;
          
        } else {
          drop++;
          cards[st][t] = suit;
          cards[st][t + 1] = buf[p + 1];
          t += 2; p += 2;
        }
        
      }
    }

    cards[st][t] = 0;
    // printf("%c drop=%d %s\n", suit, drop, cards[st]);

    if(drop < min_drop) {
      min_drop = drop;
      idx = st;
    }
  }

  puts(min_drop <= 0 ? "0" : cards[idx]);

  return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:21:12: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result]

Judge Result