Submission #555254

#TimeUsernameProblemLanguageResultExecution timeMemory
555254nafis_shifatRemittance (JOI19_remittance)C++17
100 / 100
298 ms28404 KiB
#include<bits/stdc++.h> #define ll long long #define pii pair<int,int> using namespace std; const int mxn=1e6+5; const int inf=1e9; int a[mxn], b[mxn]; int n; void process() { for(int i = 0; i < n; i++) { int nxt = (i + 1) % n; int rem = (a[i] - b[i]) / 2; if(rem <= 0) continue; a[nxt] += rem; a[i] -= 2 * rem; } } int main() { cin >> n; ll bs = 0; ll as = 0; for(int i = 0; i < n; i++) { scanf("%d%d", &a[i], &b[i]); bs += b[i]; as += a[i]; } if(as && !bs) { cout<<"No"<<endl; return 0; } for(int i = 0; i < 60; i++) process(); bool f1 = true, f2 = true; for(int i = 0; i < n; i++) { f1 = f1 && (a[i] == b[i]); f2 = f2 && (a[i] == b[i] + 1); } if(f1 || f2) cout<<"Yes"<<endl; else cout<<"No"<<endl; }

Compilation message (stderr)

remittance.cpp: In function 'int main()':
remittance.cpp:25:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |         scanf("%d%d", &a[i], &b[i]);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~
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