제출 #1175388

#제출 시각아이디문제언어결과실행 시간메모리
1175388ByeWorld송금 (JOI19_remittance)C++20
0 / 100
0 ms328 KiB
#include <bits/stdc++.h> // #pragma GCC optimize("O3") #define int long long #define ll long long #define pb push_back #define fi first #define se second #define lf (id<<1) #define rg ((id<<1)|1) #define md ((l+r)>>1) #define ld long double using namespace std; typedef pair<int,int> pii; typedef pair<pii,pii> ipii; const int MAXN = 1e6+10; const int MAXA = 2e5; const int INF = 1e9+100; const int SQRT = 500; const int LOG = 24; const int MOD = 1e9+7; void chmn(auto &a, auto b){ a = min(a, b); } void chmx(int &a, int b){ a = max(a, b); } int sum(int a, int b){ a %= MOD; b %= MOD; return (a+b)%MOD; } int sub(int a, int b){ a %= MOD; b %= MOD; return (a+MOD-b)%MOD; } void chsum(int &a, int b){ a %= MOD; b %= MOD; a = (a+b)%MOD; } void chsub(int &a, int b){ a %= MOD; b %= MOD; a = (a+MOD-b)%MOD; } int mul(int a, int b){ a %= MOD; b %= MOD; return a*b%MOD;} void chmul(int &a, int b){ a = a*b%MOD; } int expo(int a, int b){ if(b==0) return 1; int te = expo(a, b/2); te = mul(te, te); return (b%2 ? mul(te, a) : te); } int n, a[MAXN], x[MAXN]; signed main(){ // ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0); cin>>n; for(int i=1; i<=n; i++){ cin>>a[i]; int x;cin>>x; a[i] -= x; } int te = 0; for(int pp=1; pp<=10; pp++){ for(int i=1; i<=n; i++){ te += x[i]; x[i] = 0; if(a[i] >= 0) te += a[i], a[i] = 0; else { int mn = min(-a[i], te); a[i] += mn; te -= mn; } if(te%2) x[i] = 1, te--; te /= 2; } } bool can = 1; for(int i=1; i<=n; i++){ if(x[i]!=0 || a[i]!=0) can = 0; } cout << (can ? "Yes\n" : "No\n"); }
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