|
| 1 | +#include<bits/stdc++.h> |
| 2 | +#include<queue> |
| 3 | +using namespace std; |
| 4 | +typedef unordered_map<int, int> umii; |
| 5 | +typedef unordered_map<long long, long long> umll; |
| 6 | +typedef unordered_map<char, long long> umci; |
| 7 | +typedef vector<pair<int, int>> vpi; |
| 8 | +typedef vector<int> vi; |
| 9 | +typedef long long ll; |
| 10 | +typedef vector<long long> vll; |
| 11 | +typedef unordered_map<int , bool> umib; |
| 12 | +#define sum(v) accumulate(v.begin(), v.end(), 0) |
| 13 | +#define endl '\n' |
| 14 | +#define f0(i, n) for(long long i = 0; i < n; i++) |
| 15 | +#define f1(i, n) for(long long i = 1; i < n; i++) |
| 16 | +#define as(v) sort(v.begin(), v.end()) |
| 17 | +#define all(x) (x).begin(), (x).end() |
| 18 | +#define pb push_back |
| 19 | +template<class T> umll frequency(vector<T> &v) {umll freq;for(auto &x:v) freq[x]++; return freq;} |
| 20 | +template<class T> umci S_frequency(vector<T> &v) {umci freq;for(auto &x:v) freq[x]++; return freq;} |
| 21 | +template <class T> void input(vector<T> &v){for(auto &x:v)cin>>x;} |
| 22 | +ll power(ll x, ll y){ ll res = 1; while (y > 0){ if (y & 1) res = (ll)(res*x); y = y>>1; x = (ll)(x*x); } return res; } |
| 23 | +void pvll(const vector<long long> &arr){for(auto it : arr){cout << it << " ";}cout << endl;} |
| 24 | +void pvi(const vector<int> &arr){for(auto it : arr){cout << it << " ";}cout << endl;} |
| 25 | + |
| 26 | + |
| 27 | +void solve(){ |
| 28 | + |
| 29 | +//-------------INPUT------------- |
| 30 | + ll a; |
| 31 | + cin >> a; |
| 32 | + ll b,c; |
| 33 | + cin >> b >> c; |
| 34 | + if(b<a) |
| 35 | + { |
| 36 | + swap(a,b); |
| 37 | + } |
| 38 | + // n is total number |
| 39 | + ll n = 2*(b-a); |
| 40 | + //cout << n << " "; |
| 41 | + if(a>n || b>n || c>n) |
| 42 | + { |
| 43 | + // this states that given constraints are not forming a proper circle |
| 44 | + cout << -1 << endl; |
| 45 | + return; |
| 46 | + } |
| 47 | + |
| 48 | + if(c-n/2 != a && c-n/2 != b) |
| 49 | + { |
| 50 | + if(c-n/2 <=n && c-n/2>=1) |
| 51 | + { |
| 52 | + |
| 53 | + // looking exactly opposite of the c if c-n/2 meetss the condition |
| 54 | + cout << c - n/2 << endl; |
| 55 | + |
| 56 | + return; |
| 57 | + } |
| 58 | + } |
| 59 | + |
| 60 | + |
| 61 | + if(c+n/2 != a && c+n/2 != b) |
| 62 | + { |
| 63 | + |
| 64 | + if(c+n/2 <=n && c+n/2>=1) |
| 65 | + { |
| 66 | + // looking exactly opposite of the c if c+n/2 meets the condition |
| 67 | + cout << c + n/2 << endl; |
| 68 | + |
| 69 | + return; |
| 70 | + } |
| 71 | + } |
| 72 | + |
| 73 | + |
| 74 | + cout << -1 << endl; |
| 75 | + |
| 76 | + |
| 77 | +//-------------CODE-------------- |
| 78 | + |
| 79 | + |
| 80 | + |
| 81 | +} |
| 82 | + |
| 83 | + |
| 84 | +int main(){ |
| 85 | + int tt; cin >> tt; while(tt--) |
| 86 | +{solve();}; |
| 87 | +} |
| 88 | + |
| 89 | + |
| 90 | +// SUBMISSION LINK |
| 91 | +//https://codeforces.com/contest/1560/submission/355199870 |
0 commit comments