[BOJ] 10800 컬러볼

Time Lapse :37min 0sec

10800.cpp

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#include <iostream>
#include <algorithm>
#include <map>
#include <queue>
using namespace std;
struct ball {
int c, s, idx;
};
bool operator<(ball a, ball b) {
return a.s == b.s ? a.c > b.c : a.s > b.s;
}
int ans[200000];
int n;
int main() {
scanf("%d",&n);
ball b;
priority_queue<ball> pq;
for(int i = 0; i < n; i++) {
scanf("%d %d",&b.c,&b.s);
pq.push(ball{.c = b.c, .s = b.s, .idx = i});
}
int tot = 0, lsize = 0;
map<int, int> calc,calc2;
while(!pq.empty()) {
b = pq.top();
pq.pop();
if(b.s != lsize) {
lsize = b.s;
map<int, int> temp;
for(auto it : calc2) {
calc[it.first] += it.second;
tot += it.second;
}
calc2 = temp;
calc2[b.c] += b.s;
} else
calc2[b.c] += b.s;
ans[b.idx] = tot - calc[b.c];
}
for(int i = 0; i < n; i++)
printf("%d\n",ans[i]);
}
Author: Song Hayoung
Link: https://songhayoung.github.io/2020/09/06/PS/BOJ/10800/
Copyright Notice: All articles in this blog are licensed under CC BY-NC-SA 4.0 unless stating additionally.