// Source: https://usaco.guide/general/io
#include <bits/stdc++.h>
#define int long long
using namespace std;
signed main() {
int n,m;cin>>n>>m;
vector<int> v(n+1),hely(n+1);
for(int i = 0;i<m;i++){
int a,c;cin>>a>>c;
if(v[a]<c){
v[a]=c;
hely[a]=i+1;
}
}
vector<array<int,4>> dp(n+1);
dp[1][0]=0,dp[1][1]=v[1],dp[1][3]=hely[1];
for(int i = 2;i<=n;i++){
if(dp[i-1][0]>=dp[i-1][1]){
dp[i][0]=dp[i-1][0];
dp[i][2]=dp[i-1][2];
}
else{
dp[i][0]=dp[i-1][1];
dp[i][2]=dp[i-1][3];
}
if(dp[i-2][0]>=dp[i-2][1]){
dp[i][1]=dp[i-2][0]+v[i];
dp[i][3]=hely[i];
}
else{
dp[i][1]=dp[i-2][1]+v[i];
dp[i][3]=hely[i];
}
}
cout<<max(dp[n][0],dp[n][1])<<' ';
vector<int> ans;
int i = n,curr=max(dp[n][0],dp[n][1]);
while(i>0&&curr>0){
if(dp[i][0]>dp[i][1]){
i--;
}
else{
if(hely[i]>0)ans.push_back(hely[i]);
i-=2;
}
}
reverse(ans.begin(),ans.end());
cout<<ans.size()<<endl;
for(int i : ans)cout<<i<<' ';
}
| Subtask | Sum | Test | Verdict | Time | Memory | ||
|---|---|---|---|---|---|---|---|
| subtask1 | 0/0 | ||||||
| 1 | Accepted | 1ms | 508 KiB | ||||
| 2 | Accepted | 57ms | 820 KiB | ||||
| subtask2 | 10/10 | ||||||
| 3 | Accepted | 1ms | 508 KiB | ||||
| 4 | Accepted | 1ms | 560 KiB | ||||
| 5 | Accepted | 1ms | 316 KiB | ||||
| 6 | Accepted | 1ms | 316 KiB | ||||
| 7 | Accepted | 1ms | 316 KiB | ||||
| subtask3 | 10/10 | ||||||
| 8 | Accepted | 1ms | 316 KiB | ||||
| 9 | Accepted | 1ms | 316 KiB | ||||
| 10 | Accepted | 1ms | 408 KiB | ||||
| 11 | Accepted | 1ms | 316 KiB | ||||
| 12 | Accepted | 1ms | 316 KiB | ||||
| subtask4 | 10/10 | ||||||
| 13 | Accepted | 1ms | 508 KiB | ||||
| 14 | Accepted | 1ms | 560 KiB | ||||
| 15 | Accepted | 1ms | 316 KiB | ||||
| 16 | Accepted | 1ms | 316 KiB | ||||
| 17 | Accepted | 1ms | 316 KiB | ||||
| 18 | Accepted | 2ms | 316 KiB | ||||
| 19 | Accepted | 2ms | 500 KiB | ||||
| 20 | Accepted | 1ms | 316 KiB | ||||
| 21 | Accepted | 1ms | 316 KiB | ||||
| 22 | Accepted | 1ms | 316 KiB | ||||
| subtask5 | 10/10 | ||||||
| 23 | Accepted | 1ms | 316 KiB | ||||
| 24 | Accepted | 1ms | 316 KiB | ||||
| 25 | Accepted | 1ms | 408 KiB | ||||
| 26 | Accepted | 1ms | 316 KiB | ||||
| 27 | Accepted | 1ms | 316 KiB | ||||
| 28 | Accepted | 1ms | 576 KiB | ||||
| 29 | Accepted | 1ms | 756 KiB | ||||
| 30 | Accepted | 1ms | 564 KiB | ||||
| 31 | Accepted | 1ms | 564 KiB | ||||
| 32 | Accepted | 1ms | 820 KiB | ||||
| subtask6 | 10/10 | ||||||
| 33 | Accepted | 1ms | 508 KiB | ||||
| 34 | Accepted | 1ms | 560 KiB | ||||
| 35 | Accepted | 1ms | 316 KiB | ||||
| 36 | Accepted | 1ms | 316 KiB | ||||
| 37 | Accepted | 1ms | 316 KiB | ||||
| 38 | Accepted | 1ms | 316 KiB | ||||
| 39 | Accepted | 1ms | 316 KiB | ||||
| 40 | Accepted | 1ms | 408 KiB | ||||
| 41 | Accepted | 1ms | 316 KiB | ||||
| 42 | Accepted | 1ms | 316 KiB | ||||
| 43 | Accepted | 2ms | 316 KiB | ||||
| 44 | Accepted | 2ms | 500 KiB | ||||
| 45 | Accepted | 1ms | 316 KiB | ||||
| 46 | Accepted | 1ms | 316 KiB | ||||
| 47 | Accepted | 1ms | 316 KiB | ||||
| 48 | Accepted | 1ms | 576 KiB | ||||
| 49 | Accepted | 1ms | 756 KiB | ||||
| 50 | Accepted | 1ms | 564 KiB | ||||
| 51 | Accepted | 1ms | 564 KiB | ||||
| 52 | Accepted | 1ms | 820 KiB | ||||
| 53 | Accepted | 1ms | 820 KiB | ||||
| 54 | Accepted | 1ms | 940 KiB | ||||
| 55 | Accepted | 1ms | 820 KiB | ||||
| 56 | Accepted | 1ms | 820 KiB | ||||
| 57 | Accepted | 1ms | 820 KiB | ||||
| subtask7 | 10/10 | ||||||
| 58 | Accepted | 1ms | 508 KiB | ||||
| 59 | Accepted | 1ms | 560 KiB | ||||
| 60 | Accepted | 1ms | 316 KiB | ||||
| 61 | Accepted | 1ms | 316 KiB | ||||
| 62 | Accepted | 1ms | 316 KiB | ||||
| 63 | Accepted | 1ms | 316 KiB | ||||
| 64 | Accepted | 1ms | 316 KiB | ||||
| 65 | Accepted | 1ms | 408 KiB | ||||
| 66 | Accepted | 1ms | 316 KiB | ||||
| 67 | Accepted | 1ms | 316 KiB | ||||
| 68 | Accepted | 2ms | 316 KiB | ||||
| 69 | Accepted | 2ms | 500 KiB | ||||
| 70 | Accepted | 1ms | 316 KiB | ||||
| 71 | Accepted | 1ms | 316 KiB | ||||
| 72 | Accepted | 1ms | 316 KiB | ||||
| 73 | Accepted | 1ms | 576 KiB | ||||
| 74 | Accepted | 1ms | 756 KiB | ||||
| 75 | Accepted | 1ms | 564 KiB | ||||
| 76 | Accepted | 1ms | 564 KiB | ||||
| 77 | Accepted | 1ms | 820 KiB | ||||
| 78 | Accepted | 1ms | 820 KiB | ||||
| 79 | Accepted | 1ms | 940 KiB | ||||
| 80 | Accepted | 1ms | 820 KiB | ||||
| 81 | Accepted | 1ms | 820 KiB | ||||
| 82 | Accepted | 1ms | 820 KiB | ||||
| 83 | Accepted | 35ms | 3124 KiB | ||||
| 84 | Accepted | 35ms | 3104 KiB | ||||
| 85 | Accepted | 35ms | 3112 KiB | ||||
| 86 | Accepted | 35ms | 3120 KiB | ||||
| 87 | Accepted | 35ms | 3644 KiB | ||||
| subtask8 | 20/20 | ||||||
| 88 | Accepted | 1ms | 508 KiB | ||||
| 89 | Accepted | 1ms | 560 KiB | ||||
| 90 | Accepted | 1ms | 316 KiB | ||||
| 91 | Accepted | 1ms | 316 KiB | ||||
| 92 | Accepted | 1ms | 316 KiB | ||||
| 93 | Accepted | 1ms | 316 KiB | ||||
| 94 | Accepted | 1ms | 316 KiB | ||||
| 95 | Accepted | 1ms | 408 KiB | ||||
| 96 | Accepted | 1ms | 316 KiB | ||||
| 97 | Accepted | 1ms | 316 KiB | ||||
| 98 | Accepted | 2ms | 316 KiB | ||||
| 99 | Accepted | 2ms | 500 KiB | ||||
| 100 | Accepted | 1ms | 316 KiB | ||||
| 101 | Accepted | 1ms | 316 KiB | ||||
| 102 | Accepted | 1ms | 316 KiB | ||||
| 103 | Accepted | 1ms | 576 KiB | ||||
| 104 | Accepted | 1ms | 756 KiB | ||||
| 105 | Accepted | 1ms | 564 KiB | ||||
| 106 | Accepted | 1ms | 564 KiB | ||||
| 107 | Accepted | 1ms | 820 KiB | ||||
| 108 | Accepted | 1ms | 820 KiB | ||||
| 109 | Accepted | 1ms | 940 KiB | ||||
| 110 | Accepted | 1ms | 820 KiB | ||||
| 111 | Accepted | 1ms | 820 KiB | ||||
| 112 | Accepted | 1ms | 820 KiB | ||||
| 113 | Accepted | 35ms | 3124 KiB | ||||
| 114 | Accepted | 35ms | 3104 KiB | ||||
| 115 | Accepted | 35ms | 3112 KiB | ||||
| 116 | Accepted | 35ms | 3120 KiB | ||||
| 117 | Accepted | 35ms | 3644 KiB | ||||
| 118 | Accepted | 68ms | 5780 KiB | ||||
| 119 | Accepted | 72ms | 5564 KiB | ||||
| 120 | Accepted | 71ms | 6576 KiB | ||||
| 121 | Accepted | 71ms | 5552 KiB | ||||
| 122 | Accepted | 71ms | 5884 KiB | ||||
| 123 | Accepted | 71ms | 5696 KiB | ||||
| 124 | Accepted | 71ms | 5552 KiB | ||||
| 125 | Accepted | 71ms | 5816 KiB | ||||
| 126 | Accepted | 71ms | 5704 KiB | ||||
| 127 | Accepted | 70ms | 5600 KiB | ||||