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| 1 | #include <bits/stdc++.h> | |
| 2 | using namespace std; | |
| 3 | const int mxn = 2e5; | |
| 4 | //#define Kin | |
| 5 | ||
| 6 | int main() | |
| 7 | {
| |
| 8 | ios_base::sync_with_stdio(0); | |
| 9 | cin.tie(0); | |
| 10 | ||
| 11 | #ifdef Kin | |
| 12 | (void)!freopen("input.txt", "r", stdin);
| |
| 13 | (void)!freopen("output.txt", "w", stdout);
| |
| 14 | #endif | |
| 15 | ||
| 16 | - | int t; |
| 16 | + | long long n, k; |
| 17 | - | cin >> t; |
| 17 | + | |
| 18 | - | while (t--) |
| 18 | + | |
| 19 | - | {
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| 19 | + | |
| 20 | - | long long n, x; |
| 20 | + | |
| 21 | while (n--) | |
| 22 | {
| |
| 23 | long long a; | |
| 24 | cin >> a; | |
| 25 | sum += a; | |
| 26 | count += mp[sum - x]; | |
| 27 | mp[sum]++; | |
| 28 | } | |
| 29 | cout << count << '\n'; | |
| 30 | return 0; | |
| 31 | } |