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孙烨 (lqst2025022)
LV 6
@ 2025-12-17 17:51:43
#include <bits/stdc++.h> using namespace std; int main(){ int a,c=0; cin>>a; for(int i=1;i<=a;i++){ c=c+i; } cout<<c; return 0; }
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- ID
- 875
- Time
- 1000ms
- Memory
- 64MiB
- Difficulty
- 5
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- # Submissions
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管理员Ter (admin)
