提出 #68745769

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ソースコード 拡げる

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
ll x;
ll ABS(ll x) { return x<0?-x:x; }
vector<ll> solve(ll x) {
    vector<ll> ans;
    ll mx=0;
    for (ll d=0;d*d<=ABS(x)*2+5;d++) mx=d;
    for (ll d=-mx;d<=mx;d++) {
        // 2 * d * n - n = x - d*d
        ll a=2*d-1,b=x-d*d;
        if (ABS(b)%ABS(a)==0) {
            ll n=b/a;
            ans.push_back(n);
            // printf("%lld %lld\n",n,d);
            // ans.push_back(-n-1);
        }
    }
    // sort(ans.begin(),ans.end());
    return ans;
}
int main() {
    scanf("%lld",&x);
    vector<ll> ans=solve(x);
    sort(ans.begin(),ans.end());
    ans.resize(unique(ans.begin(),ans.end())-ans.begin());
    printf("%d\n",(int)ans.size());
    for (ll &x : ans) printf("%lld ",x); puts("");
    return 0;
}

提出情報

コンパイルエラー

Main.cpp: In function ‘int main()’:
Main.cpp:29:5: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation]
   29 |     for (ll &x : ans) printf("%lld ",x); puts("");
      |     ^~~
Main.cpp:29:42: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘for’
   29 |     for (ll &x : ans) printf("%lld ",x); puts("");
      |                                          ^~~~
Main.cpp:24:10: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   24 |     scanf("%lld",&x);
      |     ~~~~~^~~~~~~~~~~

ジャッジ結果