| 10804 | 2024-04-14 13:14:20 | Ablablabla | Metróutasok | cpp17 | Accepted 100/100 | 82ms | 6728 KiB |
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int n;
vector<ll> szamok;
ll ossz = 0;
bool check(ll hatar){
ll mn = 0;
ll mx = 0;
for(int i = 0; i < n; i++){
ll mas = mn;
if(mn >= szamok[i]){
mn -= szamok[i];
} else if(mx < szamok[i]){
mn = szamok[i] - mx;
} else{
mn = (mn + szamok[i]) % 2;
}
if(mx + szamok[i] <= hatar){
mx += szamok[i];
} else{
ll marad = hatar - mas;
if((mas + szamok[i] <= hatar) || (szamok[i] <= mx + hatar)){
mx = hatar - (marad + szamok[i]) % 2;
} else{
return false;
}
}
}
return (mn == 0);
}
void minKer(){
ll l = max(szamok[0], szamok[n - 1]), r = ossz;
ll ans = 0;
while(l <= r){
ll k = (l + r) / 2;
if(check(k)){
ans = k;
r = k - 1;
} else{
l = k + 1;
}
}
cout << ans << "\n";
}
void maxKer(){
ll fent = 0;
ll fel = 0;
ll maxi = 0;
for(int i = 0; i < n; i++){
ll felszall = min(szamok[i], ossz / 2 - fel);
ll leszall = szamok[i] - felszall;
fent += felszall - leszall;
fel += felszall;
maxi = max(maxi, fent);
}
cout << maxi << "\n";
}
int main()
{
cin >> n;
szamok.assign(n, 0);
for(ll &x : szamok){
cin >> x;
ossz += x;
}
minKer();
maxKer();
}
| Subtask | Sum | Test | Verdict | Time | Memory | ||
|---|---|---|---|---|---|---|---|
| subtask1 | 0/0 | ||||||
| 1 | Accepted | 3ms | 1876 KiB | ||||
| 2 | Accepted | 82ms | 3468 KiB | ||||
| subtask2 | 12/12 | ||||||
| 3 | Accepted | 3ms | 2204 KiB | ||||
| 4 | Accepted | 3ms | 2276 KiB | ||||
| 5 | Accepted | 3ms | 2492 KiB | ||||
| 6 | Accepted | 3ms | 2840 KiB | ||||
| 7 | Accepted | 3ms | 2788 KiB | ||||
| 8 | Accepted | 3ms | 2792 KiB | ||||
| 9 | Accepted | 3ms | 2992 KiB | ||||
| 10 | Accepted | 3ms | 3156 KiB | ||||
| 11 | Accepted | 3ms | 3244 KiB | ||||
| 12 | Accepted | 2ms | 3184 KiB | ||||
| 13 | Accepted | 2ms | 3072 KiB | ||||
| 14 | Accepted | 3ms | 3072 KiB | ||||
| 15 | Accepted | 3ms | 3320 KiB | ||||
| 16 | Accepted | 3ms | 3284 KiB | ||||
| subtask3 | 12/12 | ||||||
| 17 | Accepted | 3ms | 2204 KiB | ||||
| 18 | Accepted | 3ms | 2276 KiB | ||||
| 19 | Accepted | 3ms | 2492 KiB | ||||
| 20 | Accepted | 3ms | 2840 KiB | ||||
| 21 | Accepted | 3ms | 2788 KiB | ||||
| 22 | Accepted | 3ms | 2792 KiB | ||||
| 23 | Accepted | 3ms | 2992 KiB | ||||
| 24 | Accepted | 3ms | 3156 KiB | ||||
| 25 | Accepted | 3ms | 3244 KiB | ||||
| 26 | Accepted | 2ms | 3184 KiB | ||||
| 27 | Accepted | 3ms | 3284 KiB | ||||
| 28 | Accepted | 3ms | 3420 KiB | ||||
| 29 | Accepted | 3ms | 3544 KiB | ||||
| 30 | Accepted | 3ms | 3640 KiB | ||||
| 31 | Accepted | 3ms | 3852 KiB | ||||
| 32 | Accepted | 3ms | 4240 KiB | ||||
| 33 | Accepted | 3ms | 4156 KiB | ||||
| 34 | Accepted | 3ms | 4284 KiB | ||||
| 35 | Accepted | 3ms | 4408 KiB | ||||
| 36 | Accepted | 3ms | 4560 KiB | ||||
| 37 | Accepted | 2ms | 3072 KiB | ||||
| 38 | Accepted | 3ms | 3072 KiB | ||||
| 39 | Accepted | 3ms | 4560 KiB | ||||
| 40 | Accepted | 3ms | 4688 KiB | ||||
| 41 | Accepted | 3ms | 4572 KiB | ||||
| 42 | Accepted | 3ms | 4692 KiB | ||||
| 43 | Accepted | 3ms | 3320 KiB | ||||
| 44 | Accepted | 3ms | 3284 KiB | ||||
| 45 | Accepted | 3ms | 4664 KiB | ||||
| 46 | Accepted | 3ms | 4664 KiB | ||||
| 47 | Accepted | 3ms | 4664 KiB | ||||
| 48 | Accepted | 2ms | 4664 KiB | ||||
| 49 | Accepted | 3ms | 4784 KiB | ||||
| subtask4 | 16/16 | ||||||
| 50 | Accepted | 3ms | 2204 KiB | ||||
| 51 | Accepted | 3ms | 2276 KiB | ||||
| 52 | Accepted | 3ms | 2492 KiB | ||||
| 53 | Accepted | 3ms | 2840 KiB | ||||
| 54 | Accepted | 3ms | 2788 KiB | ||||
| 55 | Accepted | 3ms | 2792 KiB | ||||
| 56 | Accepted | 3ms | 2992 KiB | ||||
| 57 | Accepted | 3ms | 3156 KiB | ||||
| 58 | Accepted | 3ms | 3244 KiB | ||||
| 59 | Accepted | 2ms | 3184 KiB | ||||
| 60 | Accepted | 3ms | 3284 KiB | ||||
| 61 | Accepted | 3ms | 3420 KiB | ||||
| 62 | Accepted | 3ms | 3544 KiB | ||||
| 63 | Accepted | 3ms | 3640 KiB | ||||
| 64 | Accepted | 3ms | 3852 KiB | ||||
| 65 | Accepted | 3ms | 4240 KiB | ||||
| 66 | Accepted | 3ms | 4156 KiB | ||||
| 67 | Accepted | 3ms | 4284 KiB | ||||
| 68 | Accepted | 3ms | 4408 KiB | ||||
| 69 | Accepted | 3ms | 4560 KiB | ||||
| 70 | Accepted | 3ms | 4668 KiB | ||||
| 71 | Accepted | 3ms | 4668 KiB | ||||
| 72 | Accepted | 3ms | 4800 KiB | ||||
| 73 | Accepted | 3ms | 4812 KiB | ||||
| 74 | Accepted | 3ms | 4812 KiB | ||||
| 75 | Accepted | 3ms | 4812 KiB | ||||
| 76 | Accepted | 3ms | 4808 KiB | ||||
| 77 | Accepted | 3ms | 4804 KiB | ||||
| 78 | Accepted | 3ms | 4804 KiB | ||||
| 79 | Accepted | 3ms | 4804 KiB | ||||
| 80 | Accepted | 2ms | 3072 KiB | ||||
| 81 | Accepted | 3ms | 3072 KiB | ||||
| 82 | Accepted | 3ms | 4560 KiB | ||||
| 83 | Accepted | 3ms | 4688 KiB | ||||
| 84 | Accepted | 3ms | 4572 KiB | ||||
| 85 | Accepted | 3ms | 4692 KiB | ||||
| 86 | Accepted | 3ms | 3320 KiB | ||||
| 87 | Accepted | 3ms | 3284 KiB | ||||
| 88 | Accepted | 3ms | 4664 KiB | ||||
| 89 | Accepted | 3ms | 4664 KiB | ||||
| 90 | Accepted | 3ms | 4664 KiB | ||||
| 91 | Accepted | 2ms | 4664 KiB | ||||
| 92 | Accepted | 3ms | 4784 KiB | ||||
| subtask5 | 60/60 | ||||||
| 93 | Accepted | 3ms | 2204 KiB | ||||
| 94 | Accepted | 82ms | 6160 KiB | ||||
| 95 | Accepted | 3ms | 2276 KiB | ||||
| 96 | Accepted | 3ms | 2492 KiB | ||||
| 97 | Accepted | 3ms | 2840 KiB | ||||
| 98 | Accepted | 3ms | 2788 KiB | ||||
| 99 | Accepted | 3ms | 2792 KiB | ||||
| 100 | Accepted | 3ms | 2992 KiB | ||||
| 101 | Accepted | 3ms | 3156 KiB | ||||
| 102 | Accepted | 3ms | 3244 KiB | ||||
| 103 | Accepted | 2ms | 3184 KiB | ||||
| 104 | Accepted | 3ms | 3284 KiB | ||||
| 105 | Accepted | 3ms | 3420 KiB | ||||
| 106 | Accepted | 3ms | 3544 KiB | ||||
| 107 | Accepted | 3ms | 3640 KiB | ||||
| 108 | Accepted | 3ms | 3852 KiB | ||||
| 109 | Accepted | 3ms | 4240 KiB | ||||
| 110 | Accepted | 3ms | 4156 KiB | ||||
| 111 | Accepted | 3ms | 4284 KiB | ||||
| 112 | Accepted | 3ms | 4408 KiB | ||||
| 113 | Accepted | 3ms | 4560 KiB | ||||
| 114 | Accepted | 3ms | 4668 KiB | ||||
| 115 | Accepted | 3ms | 4668 KiB | ||||
| 116 | Accepted | 3ms | 4800 KiB | ||||
| 117 | Accepted | 3ms | 4812 KiB | ||||
| 118 | Accepted | 3ms | 4812 KiB | ||||
| 119 | Accepted | 3ms | 4812 KiB | ||||
| 120 | Accepted | 3ms | 4808 KiB | ||||
| 121 | Accepted | 3ms | 4804 KiB | ||||
| 122 | Accepted | 3ms | 4804 KiB | ||||
| 123 | Accepted | 3ms | 4804 KiB | ||||
| 124 | Accepted | 65ms | 6288 KiB | ||||
| 125 | Accepted | 65ms | 6384 KiB | ||||
| 126 | Accepted | 68ms | 6468 KiB | ||||
| 127 | Accepted | 64ms | 6476 KiB | ||||
| 128 | Accepted | 67ms | 6460 KiB | ||||
| 129 | Accepted | 79ms | 6380 KiB | ||||
| 130 | Accepted | 68ms | 6376 KiB | ||||
| 131 | Accepted | 64ms | 6376 KiB | ||||
| 132 | Accepted | 81ms | 6528 KiB | ||||
| 133 | Accepted | 2ms | 3072 KiB | ||||
| 134 | Accepted | 3ms | 3072 KiB | ||||
| 135 | Accepted | 3ms | 4560 KiB | ||||
| 136 | Accepted | 3ms | 4688 KiB | ||||
| 137 | Accepted | 3ms | 4572 KiB | ||||
| 138 | Accepted | 3ms | 4692 KiB | ||||
| 139 | Accepted | 3ms | 3320 KiB | ||||
| 140 | Accepted | 3ms | 3284 KiB | ||||
| 141 | Accepted | 3ms | 4664 KiB | ||||
| 142 | Accepted | 3ms | 4664 KiB | ||||
| 143 | Accepted | 3ms | 4664 KiB | ||||
| 144 | Accepted | 35ms | 6488 KiB | ||||
| 145 | Accepted | 32ms | 6620 KiB | ||||
| 146 | Accepted | 37ms | 6728 KiB | ||||
| 147 | Accepted | 24ms | 5988 KiB | ||||
| 148 | Accepted | 35ms | 6452 KiB | ||||
| 149 | Accepted | 32ms | 6452 KiB | ||||
| 150 | Accepted | 2ms | 4664 KiB | ||||
| 151 | Accepted | 3ms | 4784 KiB | ||||
| 152 | Accepted | 32ms | 6600 KiB | ||||