제출 #16239

#제출 시각아이디문제언어결과실행 시간메모리
16239eaststar택배 (KOI13_delivery)C++14
100 / 100
30 ms1208 KiB
#include <stdio.h>
#include <algorithm>
using namespace std;
struct data{
    int s,e,cnt;
    bool operator<(const data&r)const{
        if(e==r.e)return s>r.s;
        return e<r.e;
    }
}a[10010];
int s[2010],ans,mx;
int main(){
    int i,j,n,c,m;
    scanf("%d%d%d",&n,&c,&m);
    for(i=0;i<m;++i)scanf("%d%d%d",&a[i].s,&a[i].e,&a[i].cnt);
    sort(a,a+m);
    for(i=0;i<m;++i){
        mx=0;
        for(j=a[i].s;j<a[i].e;++j)mx=max(mx,s[j]);
        mx=min(a[i].cnt,c-mx);
        for(j=a[i].s;j<a[i].e;++j)s[j]+=mx;
        ans+=mx;
    }
    printf("%d",ans);
    return 0;
}
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