Submission #2874311

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;

const ll MAX=300000;
const ll INF=0x3f3f3f3f3f3f3f;
ll p,q,tmp[MAX],ans[MAX],d[MAX],dtot[MAX],near[MAX],N,D,Q;
int main(){
    scanf("%lld%lld",&N,&D);
    for(ll i=0;i<N;i++) scanf("%lld",&d[i]);
    dtot[0]=D;
    for(ll i=1;i<=N;i++) dtot[i]=min(dtot[i-1],abs(d[i-1]-dtot[i-1]));
    near[N]=0;
    for(ll i=N-1;i>=1;i--) {
        if(near[i+1]>=d[i]/2) near[i]=max(d[i]+near[i+1],near[i+1]);
        else near[i]=near[i+1];
    }
    for(ll i=0;i<N;i++) {
        if(near[i+1]>=dtot[i]) ans[i]=1;
        //printf("%lld %lld %lld\n",i,dtot[i],near[i+1]);
    }

    scanf("%lld",&Q);
    for(ll i=0;i<Q;i++){
        ll t1;
        scanf("%lld",&t1);
        if(ans[t1-1]) printf("NO\n");
        else printf("YES\n");
    }
    return 0;
}

Submission Info

Compile Error

./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",&N,&D);
                            ^
./Main.cpp:13:44: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     for(ll i=0;i<N;i++) scanf("%lld",&d[i]);
                                            ^
./Main.cpp:26:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld",&Q);
                     ^
./Main.cpp:29:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld",&t1);
                          ^

Judge Result