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Submission #258851

# Submission time Handle Problem Language Result Execution time Memory
258851 2020-08-06T15:51:19 Z doowey Remittance (JOI19_remittance) C++14
0 / 100
 1 ms 384 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<int,int> pii;

#define fi first
#define se second
#define mp make_pair
#define fastIO ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);

const int N = (int)1e6 + 10;
ll A[N], B[N];

int main(){
    fastIO;
    int n;
    cin >> n;
    for(int i = 0 ; i < n ; i ++ ){
        cin >> A[i] >> B[i];
    }
    int nx;
    bool has = true;
    ll take;
    while(has){
        has=false;
        for(int i = 0 ; i < n; i ++ ){
            if(A[i] > B[i]){
                take = (A[i] - B[i]) / 2ll;
                if(take > 0){
                    has = true;
                    A[i] -= take * 2;
                    A[(i + 1) % n] += take;
                }
            }
        }
    }
    for(int i = 0 ; i < n; i ++ ){
        if(A[i] != B[i]){
            cout << "No\n";
            return 0;
        }
    }
    cout << "Yes\n";
    return 0;
}

Compilation message

remittance.cpp: In function 'int main()':
remittance.cpp:23:9: warning: unused variable 'nx' [-Wunused-variable]
     int nx;
         ^~

Subtask #1
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Incorrect 1 ms 384 KB Output isn't correct
9 Halted 0 ms 0 KB -

Subtask #2
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Incorrect 1 ms 384 KB Output isn't correct
9 Halted 0 ms 0 KB -

Subtask #3
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Incorrect 1 ms 384 KB Output isn't correct
9 Halted 0 ms 0 KB -