AtCoder Beginner Contest 010

Submission #7475210

Source codeソースコード

#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#define MINDIFF 2.25e-308                   // use for convergence check

double sqroot(double square)
{
    double root=square/3, last, diff=1;
    if (square <= 0) return 0;
    do {
        last = root;
        root = (root + square / root) / 2;
        diff = root - last;
    } while (diff > MINDIFF || diff < -MINDIFF);
    return root;
}

double dist(int x1, int x2, int y1, int y2) {
    return sqroot((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2));
}

int main(void) {
    int txa, tya, txb, tyb, T, V, n;
    scanf("%d %d %d %d %d %d", &txa, &tya, &txb, &tyb, &T, &V);
    scanf("%d", &n);

    int *x = (int*)malloc(n * sizeof(int));
    int *y = (int*)malloc(n * sizeof(int));
    int i;
    for(i=0; i<n; i++) {
        scanf("%d %d", &x[i], &y[i]);
    }

    for(i=0; i<n; i++) {
        if(dist(txa, x[i], tya, y[i]) / (double)V + dist(txb, x[i], tyb, y[i]) / (double)V <= T) {
            printf("YES\n");
            return 0;
        }
    }
    printf("NO\n");
    return 0;
}

Submission

Task問題 C - 浮気調査
User nameユーザ名 MTfirst
Created time投稿日時
Language言語 C (GCC 5.4.1)
Status状態 AC
Score得点 100
Source lengthソースコード長 1098 Byte
File nameファイル名
Exec time実行時間 1 ms
Memory usageメモリ使用量 128 KB

Compiler messageコンパイルメッセージ

./Main.c: In function ‘main’:
./Main.c:24:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d %d %d %d %d %d", &txa, &tya, &txb, &tyb, &T, &V);
^
./Main.c:25:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d", &n);
^
./Main.c:31:9: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d %d", &x[i], &y[i]);
^

Test case

Set

Set name Score得点 / Max score Cases
All 100 / 100 sample_01.txt,sample_02.txt,sample_03.txt,sample_04.txt,test_01.txt,test_02.txt,test_03.txt,test_04.txt,test_05.txt,test_06.txt,test_07.txt,test_08.txt,test_09.txt,test_10.txt,test_11.txt,test_12.txt,test_13.txt,test_14.txt,test_15.txt,test_16.txt,test_17.txt,test_18.txt,test_19.txt,test_20.txt,test_21.txt,test_22.txt,test_23.txt,test_24.txt,test_25.txt,test_26.txt,test_27.txt,test_28.txt,test_29.txt,test_30.txt,test_31.txt

Test case

Case name Status状態 Exec time実行時間 Memory usageメモリ使用量
sample_01.txt AC 1 ms 128 KB
sample_02.txt AC 1 ms 128 KB
sample_03.txt AC 1 ms 128 KB
sample_04.txt AC 1 ms 128 KB
test_01.txt AC 1 ms 128 KB
test_02.txt AC 1 ms 128 KB
test_03.txt AC 1 ms 128 KB
test_04.txt AC 1 ms 128 KB
test_05.txt AC 1 ms 128 KB
test_06.txt AC 1 ms 128 KB
test_07.txt AC 1 ms 128 KB
test_08.txt AC 1 ms 128 KB
test_09.txt AC 1 ms 128 KB
test_10.txt AC 1 ms 128 KB
test_11.txt AC 1 ms 128 KB
test_12.txt AC 1 ms 128 KB
test_13.txt AC 1 ms 128 KB
test_14.txt AC 1 ms 128 KB
test_15.txt AC 1 ms 128 KB
test_16.txt AC 1 ms 128 KB
test_17.txt AC 1 ms 128 KB
test_18.txt AC 1 ms 128 KB
test_19.txt AC 1 ms 128 KB
test_20.txt AC 1 ms 128 KB
test_21.txt AC 1 ms 128 KB
test_22.txt AC 1 ms 128 KB
test_23.txt AC 1 ms 128 KB
test_24.txt AC 1 ms 128 KB
test_25.txt AC 1 ms 128 KB
test_26.txt AC 1 ms 128 KB
test_27.txt AC 1 ms 128 KB
test_28.txt AC 1 ms 128 KB
test_29.txt AC 1 ms 128 KB
test_30.txt AC 1 ms 128 KB
test_31.txt AC 1 ms 128 KB