Submission #3615672

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Source Code Expand

#include <iostream>
#include <cstdio>
#include <cstring>
#include <cmath>
using namespace std;
const int N=1e6;
int n,q,sum=0;
int a[N+10],fa[N*2+10];
int Getf(int x) {
    return (fa[x]==x)?x:fa[x]=Getf(fa[x]);
}
int main() {
    scanf("%d",&n);
    for (int i=1;i<n;i++) scanf("%d",&a[i]);
    for (int i=0;i<=N*2;i++) fa[i]=i;
    for (int i=n-1;i>=3;sum+=a[i],i--)
        for (int j=sum;j<sum+a[i];j++)
            fa[Getf(j)]=Getf((sum+a[i])*2-j);
    scanf("%d",&q);
    while (q--) {
        int x;
        scanf("%d",&x);
        printf("%d ",(x<=sum?Getf(x):x)-sum+a[1]-a[2]);
    }
    printf("\n");
    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:13:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
                   ^
./Main.cpp:14:44: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     for (int i=1;i<n;i++) scanf("%d",&a[i]);
                                            ^
./Main.cpp:19:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&q);
                   ^
./Main.cpp:22:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&x);
                       ^

Judge Result