Submission #4319924

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Source Code Expand

#include<bits/stdc++.h>
#define int long long
#define mod 1000000007
int C(int a,int b){
    int ans=1;
    for(int i=1;i<=k;i++)
        (ans*=a-i+1)/=i;
    return ans;
}
signed main(){
    int n,m;
    scanf("%lld%lld",&m,&n);
    int k=n%m;//C(m,k)
    printf("%lld",C(m,k));
    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘long long int C(long long int, long long int)’:
./Main.cpp:6:20: error: ‘k’ was not declared in this scope
     for(int i=1;i<=k;i++)
                    ^
./Main.cpp: In function ‘int main()’:
./Main.cpp:12:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld%lld",&m,&n);
                            ^