Submission #869143

#	Time	Username	Problem	Language	Result	Execution time	Memory
869143		tuannm	Zamjena (COCI18_zamjena)	C++17	14 / 70	23 ms	8084 KiB

zamjena

#include<bits/stdc++.h>
#define ii pair<int, int>
#define ll pair<long long, long long>
#define fi first
#define se second
#define pb push_back
//#define ORDS
using namespace std;

#ifdef ORDS
    #include <ext/pb_ds/assoc_container.hpp>
    #include <ext/pb_ds/tree_policy.hpp>
    using namespace __gnu_pbds;
    #define ordered_set tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update>
#endif

const int mod[2] = {1000000007, 998244353};
const int N = 1e5 + 1;
const string NAME = "zamjena";
const int lim = 2147483647;
//const unsigned int lim = 4294967295;
//const long long lim = 9223372036854775807;
//const unsigned long long lim = 18446744073709551615;
const int mset = 0x3f;
const double pi = acos(-1);
mt19937 rd(chrono::steady_clock::now().time_since_epoch().count());
int n;
int x[N], y[N];
map<string, int> mp;
string a[N], b[N];

#ifdef i128
ostream & operator << (ostream &out, const __int128 &x){
    __int128 i = x;
    vector<int> digits;
    while(i > 0){
        digits.pb(i % 10);
        i /= 10;
    }
    reverse(digits.begin(), digits.end());
    for(auto x : digits)
        out << x;
    return out;
}
#endif

void inp(){
    cin >> n;
    for(int i = 1; i <= n; ++i){
        cin >> a[i];
    }
    for(int i = 1; i <= n; ++i){
        cin >> b[i];
    }
}

void solve(){
    for(int i = 1; i <= n; ++i){
        if(a[i][0] >= '0' && a[i][0] <= '9'){
            for(int j = 0; j < a[i].size(); ++j){
                x[i] = x[i] * 10 + (a[i][j] - '0');
            }
        }
        else x[i] = -1;
        if(b[i][0] >= '0' && b[i][0] <= '9'){
            for(int j = 0; j < b[i].size(); ++j){
                y[i] = y[i] * 10 + (b[i][j] - '0');
            }
        }
        else y[i] = -1;
    }
    bool ok = true;
    for(int i = 1; i <= n; ++i){
        if(x[i] == -1 && y[i] == -1)
            continue;
        if(x[i] == -1){
            if(!mp[a[i]])
                mp[a[i]] = y[i];
            else ok = false;
        }
        if(y[i] == -1){
            if(!mp[b[i]])
                mp[b[i]] = x[i];
            else ok = false;
        }
    }
    for(int i = 1; i <= n; ++i){
        if(x[i] == -1 && mp[a[i]])
            x[i] = mp[a[i]];
        if(y[i] == -1 && mp[b[i]])
            y[i] = mp[b[i]];
    }
    for(int i = 1; i <= n; ++i){
        if(x[i] == -1 && y[i] == -1)
            continue;
        if(x[i] == -1){
            if(!mp[a[i]])
                mp[a[i]] = y[i];
            else ok = false;
        }
        if(y[i] == -1){
            if(!mp[b[i]])
                mp[b[i]] = x[i];
            else ok = false;
        }
    }
    for(int i = 1; i <= n; ++i){
        if(x[i] == -1 && mp[a[i]])
            x[i] = mp[a[i]];
        if(y[i] == -1 && mp[b[i]])
            y[i] = mp[b[i]];
        if(x[i] != y[i])
            ok = false;
    }
    if(ok)
        cout << "DA";
    else cout << "NE";
}

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    #ifdef TimeCalculation
        auto starttime = chrono::high_resolution_clock::now();
    #endif

    if(fopen((NAME + ".inp").c_str(), "r")){
        freopen((NAME + ".inp").c_str(), "r", stdin);
        freopen((NAME + ".out").c_str(), "w", stdout);
    }

    inp();
    solve();

    #ifdef TimeCalculation
        auto endtime = chrono::high_resolution_clock::now();
        auto duration = chrono::duration_cast<chrono::milliseconds>(endtime - starttime).count();
        cout << "\n=====" << "\nTime elapsed: " << duration << " ms\n";
    #endif
}

/*
5
x 3 x y 3
x y 2 z 3
*/

Compilation message (stderr)

zamjena.cpp: In function 'void solve()':
zamjena.cpp:60:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   60 |             for(int j = 0; j < a[i].size(); ++j){
      |                            ~~^~~~~~~~~~~~~
zamjena.cpp:66:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   66 |             for(int j = 0; j < b[i].size(); ++j){
      |                            ~~^~~~~~~~~~~~~
zamjena.cpp: In function 'int main()':
zamjena.cpp:129:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  129 |         freopen((NAME + ".inp").c_str(), "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
zamjena.cpp:130:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  130 |         freopen((NAME + ".out").c_str(), "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 14 / 14
• Subtask 2: 0 / 14
• Subtask 3: 0 / 14
• Subtask 4: 0 / 14
• Subtask 5: 0 / 14