oj.uz

답안 #570364

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
570364 2022-05-29T10:45:27 Z urd05 송금 (JOI19_remittance) C++17
0 / 100
 1 ms 340 KB 
#include <bits/stdc++.h>
using namespace std;

int n;
long long c[1000001];
long long arr[1000001]; //비트 저장
long long value[1000001];
long long money[1000001];
bool vis[1000001];

int main() {
    scanf("%d",&n);
    for(int i=1;i<=n;i++) {
        int a,b;
        scanf("%d %d",&a,&b);
        money[i]=a;
        c[i]=b-a;
    }
    arr[0]=(c[1]&1);
    long long val=(c[1]>>1);
    for(int i=1;i<n;i++) {
        val+=c[i+1];
        arr[i]=(val&1);
        val=(val>>1);
    }
    long long mok=val;
    long long pr=val;
    arr[0]+=val;
    while (pr!=0) {
        long long now=0;
        for(int i=0;i<n;i++) {
            if (i==n-1) {
                now+=(arr[i]>>1);
            }
            else {
                arr[i+1]+=(arr[i]>>1);
            }
            arr[i]=(arr[i]&1);
        }
        pr=now;
        mok+=now;
        arr[0]+=now;
    }
    bool flag=true;
    for(int i=1;i<n;i++) {
        if (arr[i]!=arr[i-1]) {
            flag=false;
            break;
        }
    }
    if (!flag) {
        printf("No");
        return 0;
    }
    if (arr[0]==1) {
        mok++;
    }
    if (mok>0) {
        printf("No");
        return 0;
    }
    long long x=-mok;
    value[n]=x;
    for(int i=n-1;i>0;i--) {
        x=2*x+c[i];
        value[i]=x;
        if (x<0) {
            printf("No");
            return 0;
        }
    }
    for(int i=1;i<=n;i++) {
        if (2*value[i]<=money[i]) {
            printf("Yes");
            return 0;
        }
    }
    printf("No");
    return 0;
}

Compilation message

remittance.cpp: In function 'int main()':
remittance.cpp:12:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |     scanf("%d",&n);
      |     ~~~~~^~~~~~~~~
remittance.cpp:15:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |         scanf("%d %d",&a,&b);
      |         ~~~~~^~~~~~~~~~~~~~~

Subtask #1
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Incorrect 0 ms 212 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #2
0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Incorrect 0 ms 212 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #3
0 / 45.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Incorrect 0 ms 212 KB Output isn't correct
7 Halted 0 ms 0 KB -