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Submission #7781

# Submission time Handle Problem Language Result Execution time Memory
7781 2014-08-19T10:06:27 Z gs14004 다각형 (GA5_polygon) C++
0 / 100
 0 ms 1088 KB 
#include <cstdio>

long long f(long long p){
    p >>= 1;
    long long res = p*(p+1)/2;
    return res-1;
}

int main(){
    long long s,e;
    scanf("%lld %lld",&s,&e);
    printf("%lld",2*(f(e)-f(s-1)));
}

Subtask #1
0.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 1088 KB Output is correct
2 Incorrect 0 ms 1088 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0.0 / 10.0

# Verdict Execution time Memory Grader output
1 Halted 0 ms 0 KB -

Subtask #3
0.0 / 30.0

# Verdict Execution time Memory Grader output
1 Halted 0 ms 0 KB -