Submission #972758

#	Time	Username	Problem	Language	Result	Execution time	Memory
972758		saidpon	Bank (IZhO14_bank)	C++14	0 / 100	24 ms	57948 KiB

bank

#include <bits/stdc++.h>
#define ordered_set tree <int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update>
#define nemeshay ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
#define allr(pon) pon.rbegin(), pon.rend()
#include <ext/pb_ds/assoc_container.hpp>
#define all(pon) pon.begin(), pon.end()
#include <ext/pb_ds/tree_policy.hpp>
#define pii pair <int, int>
#define nosolve puts("-1")
#define YES puts("YES")
#define pb push_back
#define pf push_front
#define int long long
#define OK puts("OK")
#define NO puts("NO")
#define sigma signed
#define sc second
#define fr first
using namespace __gnu_pbds;
using namespace std;
const int N = 1e6 + 20, INF = 2e9 + 7;
int a[N], b[N];
vector <string> pon[N];
string bit[N];
string v2(int x, int k){
    string s = "";
    while (x != 0){
        s.pb((x % 2) + '0');
        x /= 2;
    }
    if (s.size() < k){
        while (s.size() < k) s.pb('0');
    }
    reverse (s.begin(), s.end());
    return s;
}
sigma main(){
    nemeshay
    int n, m, dva = 1;
    cin >> n >> m;
    for (int i = 1; i <= n; i++) cin >> a[i];
    for (int i = 1; i <= m; i++){
        cin >> b[i];
        dva *= 2;
    }
    for (int i = 0; i < dva; i++){
        bit[i] = (v2(i, m));
    }
    pon[0].pb(bit[0]);
    for (int i = 1; i <= n; i++){
        if (pon[i - 1].empty()){
            NO;
            return 0;
        }
        for (int j = 0; j < dva; j++){
            int sum = 0;
            for (int l = 0; l < bit[j].size(); l++){
                if (bit[j][l] == '1') sum += b[i + 1];
            }
            if (sum == a[i]){
                for (auto l: pon[i - 1]){
                    int da = 1;
                    for (int k = 0; k < l.size(); k++){
                        if (bit[j][k] == l[k] && l[k] == '1'){
                            da = 0;
                            break;
                        }
                    }
                    if (da) pon[i].pb(bit[j]);
                }
            }
        }
    }
    if (pon[n].empty()) NO;
    else YES;
}

Compilation message (stderr)

bank.cpp: In function 'std::string v2(long long int, long long int)':
bank.cpp:31:18: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   31 |     if (s.size() < k){
      |         ~~~~~~~~~^~~
bank.cpp:32:25: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   32 |         while (s.size() < k) s.pb('0');
      |                ~~~~~~~~~^~~
bank.cpp: In function 'int main()':
bank.cpp:57:31: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |             for (int l = 0; l < bit[j].size(); l++){
      |                             ~~^~~~~~~~~~~~~~~
bank.cpp:63:39: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   63 |                     for (int k = 0; k < l.size(); k++){
      |                                     ~~^~~~~~~~~~

• Subtask 1: 0 / 19
• Subtask 2: 0 / 25
• Subtask 3: 0 / 27
• Subtask 4: 0 / 29