제출 #74357

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
74357	2018-08-31 11:02:26	khsoo01	이더리움과 비트코인 (FXCUP2_ethereum)	C++11	1 / 1	2 ms	584 KiB

ethereum

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#include "ethereum.h"
#include <stdio.h>
typedef long long ll;
const ll v1 = 100000000, v2 = 99999999;
 
bool haja (excinfo &I) {
  return (I.BTC == 0 || I.ETH == 0);
}
 
excinfo GetExchangePrice() {
  ll r1, r2;
  excinfo A = Exchange(v1), B = Exchange(v2);
  bool B1 = haja(A), B2 = haja(B);
  if(B1 && B2) {
    if(A.BTC) r1 = v1 / A.BTC;
    if(A.ETH) r2 = v1 / A.ETH;
    if(B.BTC) r1 = v2 / B.BTC;
    if(B.ETH) r2 = v2 / B.ETH;
  }
  else if(B1) {
    if(A.BTC) {
      r1 = v1 / A.BTC;
      r2 = (v2 - B.BTC * r1) / B.ETH;
    }
    if(A.ETH) {
      r2 = v1 / A.ETH;
      r1 = (v2 - B.ETH * r2) / B.BTC;
    }
  }
  else if(B2) {
 
 
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컴파일 시 표준 에러 (stderr) 메시지

ethereum.cpp: In function 'excinfo GetExchangePrice()':
ethereum.cpp:44:16: warning: 'r2' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return {r1, r2};
                ^
ethereum.cpp:44:16: warning: 'r1' may be used uninitialized in this function [-Wmaybe-uninitialized]

• Subtask 1: 1 / 1