oj.uz

Submission #1003420

# Submission time Handle Problem Language Result Execution time Memory
1003420 2024-06-20T10:05:14 Z Lini Kemija (COCI22_kemija) C++14
10 / 50
 1 ms 440 KB 
#include <iostream>
#include <vector>
#include <cctype>
using namespace std;

vector<vector<pair<char,long>>> eq;

int main() {
    long n;
    string chem;
    cin>>n;
    eq.resize(n);
    long sec=1;
    long molno=1;
    long elno=1;
    bool found;
    for (long i=0; i<n; i++){
        sec=1;
        cin>>chem;
        
        for (long k=0; k<chem.length(); ++k){
            char el=chem[k];
            if(isdigit(el)){
              molno=el-'0';
              continue;
            }
            if (el=='-'){
                sec=-1;
                continue;
            }
            if (el=='+' or el=='>'){
                molno=1;
                if (isdigit(chem[k+1])){
                    molno = chem[k+1]-'0';
                    ++k;
                    continue;
                }
            }
            elno=1;
            found=false;
            if (eq[i].size()!=0){
                for (long j=0; j<eq[i].size(); j++){
                    if (eq[i][j].first == el){
                        if (isdigit(chem[k+1])){
                            elno=chem[k+1]-'0';
                            ++k;
                        }
//                        cout<<el<<k<<": "<<elno<<"*"<<molno<<"*"<<sec<<endl;
                        eq[i][j].second += elno*molno*sec;
                        found=true;
                    }
                }
                if (found) {continue;}
            }

            if (el!='-' and el!='>' and el!='+' and not isdigit(el)){
                pair <char, long> p;
                p.first=el;
                if (isdigit(chem[k+1])){
                            elno=chem[k+1]-'0';
                            ++k;
                        }
//                cout<<el<<k<<": "<<elno<<"*"<<molno<<"*"<<sec<<endl;
                p.second=elno*molno*sec;
                eq[i].push_back(p);
            }
        }
        //cout<<eq[i].size()<<endl;
        for (long x=0; x<eq[i].size(); ++x){
            pair<char, long> elem=eq[i][x];
    //        cout<<elem.first<<", "<<elem.second<<endl;
          
        }
    }
    bool balanced;
    for (long l=0; l<n; ++l){
        balanced=true;
        for (pair<char, long> e : eq[l]){
            if (e.second!=0){
                balanced=false;
                break;
            }
        }
        if (balanced){cout<<"DA"<<endl;}
        else{cout<<"NE"<<endl;}
    }

    return 0;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:21:25: warning: comparison of integer expressions of different signedness: 'long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |         for (long k=0; k<chem.length(); ++k){
      |                        ~^~~~~~~~~~~~~~
Main.cpp:42:33: warning: comparison of integer expressions of different signedness: 'long int' and 'std::vector<std::pair<char, long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |                 for (long j=0; j<eq[i].size(); j++){
      |                                ~^~~~~~~~~~~~~
Main.cpp:69:25: warning: comparison of integer expressions of different signedness: 'long int' and 'std::vector<std::pair<char, long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   69 |         for (long x=0; x<eq[i].size(); ++x){
      |                        ~^~~~~~~~~~~~~
Main.cpp:70:30: warning: variable 'elem' set but not used [-Wunused-but-set-variable]
   70 |             pair<char, long> elem=eq[i][x];
      |                              ^~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 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 1 ms 440 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 344 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Incorrect 0 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 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 1 ms 440 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Incorrect 0 ms 348 KB Output isn't correct
12 Halted 0 ms 0 KB -