oj.uz

Submission #1024854

# Submission time Handle Problem Language Result Execution time Memory
1024854 2024-07-16T11:12:12 Z sleepntsheep Multiplication (BOI24_multiplication) C
100 / 100
 1 ms 688 KB 
#include <stdio.h>
long long mul(long long a, long long b) {
    if(!b)return 0;
    long long r=mul(a,b/2);
    if(b&1)return (r+r+a)%1000000007;
    return (r+r)%1000000007;
}
int main() {
    int n; long long a=1,b;
    scanf("%d",&n);while(n--)scanf("%lld",&b),a=mul(a,b);
    printf("%lld",a);

}

Compilation message

Main.c: In function 'main':
Main.c:10:5: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |     scanf("%d",&n);while(n--)scanf("%lld",&b),a=mul(a,b);
      |     ^~~~~~~~~~~~~~
Main.c:10:30: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |     scanf("%d",&n);while(n--)scanf("%lld",&b),a=mul(a,b);
      |                              ^~~~~~~~~~~~~~~~

Subtask #1
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 420 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 420 KB Output is correct
8 Correct 0 ms 348 KB Output is correct

Subtask #2
64.0 / 64.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 420 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 420 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 428 KB Output is correct
16 Correct 0 ms 348 KB Output is correct

Subtask #3
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 420 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 420 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 428 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 688 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 432 KB Output is correct