Submission #779833

#	Time	Username	Problem	Language	Result	Execution time	Memory
779833		79brue	Bodyguards (CEOI10_bodyguards)	C++17	10 / 100	82 ms	13140 KiB

bodyguards

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

int n, m;
pair<ll, ll> a[200002];
pair<ll, ll> b[200002];
ll c[2002], d[2002];

int main(){
    scanf("%d", &n);
    for(int i=1; i<=n; i++) scanf("%lld %lld", &a[i].first, &a[i].second);
    scanf("%d", &m);
    for(int i=1; i<=m; i++) scanf("%lld %lld", &b[i].first, &b[i].second);
    sort(a+1, a+n+1), reverse(a+1, a+n+1);
    sort(b+1, b+m+1), reverse(b+1, b+m+1);

    {
        int pnt = 0;
        for(int i=1; i<=n; i++) for(ll j=1; j<=a[i].second; j++) c[++pnt] = a[i].first;
        n = pnt;
        pnt = 0;
        for(int i=1; i<=m; i++) for(ll j=1; j<=b[i].second; j++) d[++pnt] = b[i].first;
        m = pnt;
    }

    int pnt = 1;
    for(int i=1; i<=n; i++){
        int st = pnt;
        while(c[i]){
            if(d[pnt]) c[i]--, d[pnt]--, pnt++;
            else pnt++;
            if(pnt==m+1) pnt=1;
            if(!c[i]) break;
            if(pnt == st){
                puts("0");
                return 0;
            }
        }
    }

    puts("1");
}

Compilation message (stderr)

bodyguards.cpp: In function 'int main()':
bodyguards.cpp:13:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
bodyguards.cpp:14:34: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |     for(int i=1; i<=n; i++) scanf("%lld %lld", &a[i].first, &a[i].second);
      |                             ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
bodyguards.cpp:15:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |     scanf("%d", &m);
      |     ~~~~~^~~~~~~~~~
bodyguards.cpp:16:34: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |     for(int i=1; i<=m; i++) scanf("%lld %lld", &b[i].first, &b[i].second);
      |                             ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10