oj.uz

답안 #1003254

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1003254 2024-06-20T08:15:28 Z thelepi Kemija (COCI22_kemija) C++17
50 / 50
 1 ms 604 KB 
#include <iostream>
#include <string>
#include <cassert>

using namespace std;

void parseMolecule(int atoms[], string equ, int a, int b){
  int multiplier = 1;
  bool isnew = true;
  char atom = ' ';
  for (int j = a; j < b; j++){
    char t = equ[j];
    if(t - '0' >= 0 && t - '0' < 10){
      if(isnew){
        multiplier = t - '0';
        isnew = false;
      }
      else{
        assert((atom != ' '));
        atoms[atom - 'A'] += (t - '0') * multiplier;
        atom = ' ';
      }
    }
    else if(t - 'A' >= 0 && t - 'A' < 26){
      isnew = false;
      if(atom != ' '){
        atoms[atom - 'A'] += multiplier;
      }
      atom = t;
    }
  }
  if(atom != ' '){
    atoms[atom - 'A'] += multiplier;
  }
}


int main(int, char **)
{
  int n;
  cin >> n;
  for (int i = 0; i < n; i++)
  {
    string equ;
    cin >> equ;
    
    int left[26] = {};
    int right[26] = {};
    int arrow = equ.find("->");
    assert((arrow != equ.npos));
    int a = 0;
    int b = equ.find_first_of('+');

    while(b <= arrow && b != equ.npos){
      parseMolecule(left, equ, a, b);
      a = b + 1;
      b = equ.find_first_of('+', a);
    }
    parseMolecule(left, equ, a, arrow);
    a = arrow + 2;
    b = equ.find_first_of('+', a);
    while(b != equ.npos){
      parseMolecule(right, equ, a, b);
      a = b + 1;
      b = equ.find_first_of('+', a);
    }
    parseMolecule(right, equ, a, equ.size());
    bool ok = true;
    for (int i = 0; i < 26; i++)
    {
      if(left[i] != right[i]){
        ok = false;
      }
    }
    cout << (ok ? "DA\n" : "NE\n");
  }
}

Compilation message

In file included from /usr/include/c++/10/cassert:44,
                 from Main.cpp:3:
Main.cpp: In function 'int main(int, char**)':
Main.cpp:50:19: warning: comparison of integer expressions of different signedness: 'int' and 'const size_type' {aka 'const long unsigned int'} [-Wsign-compare]
   50 |     assert((arrow != equ.npos));
Main.cpp:54:27: warning: comparison of integer expressions of different signedness: 'int' and 'const size_type' {aka 'const long unsigned int'} [-Wsign-compare]
   54 |     while(b <= arrow && b != equ.npos){
Main.cpp:62:13: warning: comparison of integer expressions of different signedness: 'int' and 'const size_type' {aka 'const long unsigned int'} [-Wsign-compare]
   62 |     while(b != equ.npos){

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 432 KB Output is correct
2 Correct 1 ms 604 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 600 KB Output is correct
9 Correct 0 ms 348 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 600 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct

Subtask #3
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 432 KB Output is correct
2 Correct 1 ms 604 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 600 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 600 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 344 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct