Submission #23146

#	Time	Username	Problem	Language	Result	Execution time	Memory
23146		ainta	Unifying Values (KRIII5_UV)	C++14	7 / 7	109 ms	1232 KiB

UV

#include<cstdio>
#include<algorithm>
using namespace std;
int n, D[10100], Mod = 1000000007, Res;
long long S[10100];
void Do(int K){
    int i;
    long long t = S[n]/K, tp;
    for(i=0;i<=K;i++)D[i] = 0;
    D[0] = 1;
    for(i=1;i<=n;i++){
        tp = S[i]/t;
        if(tp*t!=S[i])continue;
        if(tp<=0||tp>K)continue;
        D[tp] = (D[tp]+D[tp-1])%Mod;
    }
    Res = (Res + D[K-1])%Mod;
}
int main(){
    int i;
    scanf("%d",&n);
    for(i=1;i<=n;i++){
        scanf("%lld",&S[i]);
        S[i]+=S[i-1];
    }
    if(S[n]==0){
        Res = 1;
        for(i=1;i<n;i++){
            if(S[i]==0)Res=Res*2%Mod;
        }
        Res=(Res-1)%Mod;
        printf("%d\n",Res);
        return 0;
    }
    for(i=2;i<=n;i++){
        if(S[n]%i==0){
            Do(i);
        }
    }
    printf("%d\n",Res);
}

Compilation message (stderr)

UV.cpp: In function 'int main()':
UV.cpp:21:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
                   ^
UV.cpp:23:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld",&S[i]);
                            ^

• Subtask 1: 2 / 2
• Subtask 2: 5 / 5