| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 334466 |
2020-12-09T07:41:38 Z |
tengiz05 |
Gift (IZhO18_nicegift) |
C++17 |
|
42 ms |
10208 KB |
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define FASTIO ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
#define all(x) (x).begin(), (x).end()
#define pb push_back
#define pii pair<int, int>
#define ff first
#define ss second
#define PI acos(-1)
#define ld long double
const int mod = 1e9+7, N = 2e5+5;
int msb(int val){return sizeof(int)*8-__builtin_clzll(val);}
int a[N], n, m, k;
void solve(int test_case){
int i, j;
cin >> n >> k;
int sum = 0;
vector<pii> v;
for(i=0;i<n;i++){
cin >> a[i];
sum += a[i];
v.pb({a[i], i+1});
}
if(sum%k !=0){
cout << -1 << '\n';
return;
}
vector<vector<int>> ans;
while(true){
sort(all(v));
if(v[0].ff < 0 )assert(false);
if(v.back().ff == 0)break;
int sz = v.size()-1;
int mn = 1;
v[sz].ff-=mn;
v[sz-1].ff-=mn;
ans.pb({mn,v[sz].ss, v[sz-1].ss});
}
cout << ans.size() << '\n';
for(auto X : ans){
for(auto x : X)cout << x << ' ';
cout << '\n';
}
return;
}
signed main(){
FASTIO;
#define MULTITEST 0
#if MULTITEST
int ___T;
cin >> ___T;
for(int T_CASE = 1; T_CASE <= ___T; T_CASE++)
solve(T_CASE);
#else
solve(1);
#endif
return 0;
}
Compilation message
nicegift.cpp: In function 'void solve(long long int)':
nicegift.cpp:17:9: warning: unused variable 'j' [-Wunused-variable]
17 | int i, j;
| ^
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
n=4 |
| 2 |
Correct |
1 ms |
364 KB |
n=3 |
| 3 |
Correct |
1 ms |
364 KB |
n=3 |
| 4 |
Correct |
0 ms |
364 KB |
n=4 |
| 5 |
Correct |
1 ms |
364 KB |
n=4 |
| 6 |
Correct |
1 ms |
364 KB |
n=2 |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
n=4 |
| 2 |
Correct |
1 ms |
364 KB |
n=3 |
| 3 |
Correct |
1 ms |
364 KB |
n=3 |
| 4 |
Correct |
0 ms |
364 KB |
n=4 |
| 5 |
Correct |
1 ms |
364 KB |
n=4 |
| 6 |
Correct |
1 ms |
364 KB |
n=2 |
| 7 |
Correct |
1 ms |
364 KB |
n=5 |
| 8 |
Runtime error |
3 ms |
1576 KB |
Execution killed with signal 6 (could be triggered by violating memory limits) |
| 9 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
n=4 |
| 2 |
Correct |
1 ms |
364 KB |
n=3 |
| 3 |
Correct |
1 ms |
364 KB |
n=3 |
| 4 |
Correct |
0 ms |
364 KB |
n=4 |
| 5 |
Correct |
1 ms |
364 KB |
n=4 |
| 6 |
Correct |
1 ms |
364 KB |
n=2 |
| 7 |
Correct |
1 ms |
364 KB |
n=5 |
| 8 |
Runtime error |
3 ms |
1576 KB |
Execution killed with signal 6 (could be triggered by violating memory limits) |
| 9 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
42 ms |
10208 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
n=4 |
| 2 |
Correct |
1 ms |
364 KB |
n=3 |
| 3 |
Correct |
1 ms |
364 KB |
n=3 |
| 4 |
Correct |
0 ms |
364 KB |
n=4 |
| 5 |
Correct |
1 ms |
364 KB |
n=4 |
| 6 |
Correct |
1 ms |
364 KB |
n=2 |
| 7 |
Correct |
1 ms |
364 KB |
n=5 |
| 8 |
Runtime error |
3 ms |
1576 KB |
Execution killed with signal 6 (could be triggered by violating memory limits) |
| 9 |
Halted |
0 ms |
0 KB |
- |
