#include <bits/stdc++.h> using namespace std; #define REP(i,a,b) for (int i = (a); i <= (b); ++i) #define FOR(i,n) REP(i,0,(int)n-1) #define mp make_pair #define ll long long #define pb push_back #define pii pair<int,int> #define VI vector<int> #define fi first #define se second const int MAXN = 1000042; ll sufsum[MAXN]; bool visited[MAXN]; int main() { ios_base::sync_with_stdio(0); int n; cin>>n; vector<pair<ll,ll> > V; FOR(i,n) { int a,b; cin>>a>>b; V.pb(mp(a,b)); } sort(V.begin(), V.end()); //FOR(i,n) cout<<V[i].fi<<", "<<V[i].se<<"\n"; //cout<<"\n"; ll res = 0; FOR(i,n) { ll best = 0, val; int kand = -1, cnt = 0; FOR(j,n) { if(visited[j]) { cnt++; continue; } val = (1LL*cnt*V[j].fi) + V[j].se + sufsum[j]; //cout<<"j: "<<j<<" = "<<val<<"\n"; if(val > best) { best = val; kand = j; } } res += best; visited[kand] = true; for(int j = kand; j>=0; j--) sufsum[j] += V[kand].fi; cout<<res<<"\n"; } return 0; }
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | #include <bits/stdc++.h> using namespace std; #define REP(i,a,b) for (int i = (a); i <= (b); ++i) #define FOR(i,n) REP(i,0,(int)n-1) #define mp make_pair #define ll long long #define pb push_back #define pii pair<int,int> #define VI vector<int> #define fi first #define se second const int MAXN = 1000042; ll sufsum[MAXN]; bool visited[MAXN]; int main() { ios_base::sync_with_stdio(0); int n; cin>>n; vector<pair<ll,ll> > V; FOR(i,n) { int a,b; cin>>a>>b; V.pb(mp(a,b)); } sort(V.begin(), V.end()); //FOR(i,n) cout<<V[i].fi<<", "<<V[i].se<<"\n"; //cout<<"\n"; ll res = 0; FOR(i,n) { ll best = 0, val; int kand = -1, cnt = 0; FOR(j,n) { if(visited[j]) { cnt++; continue; } val = (1LL*cnt*V[j].fi) + V[j].se + sufsum[j]; //cout<<"j: "<<j<<" = "<<val<<"\n"; if(val > best) { best = val; kand = j; } } res += best; visited[kand] = true; for(int j = kand; j>=0; j--) sufsum[j] += V[kand].fi; cout<<res<<"\n"; } return 0; } |