救命，C语言写的，本机测试没问题但全寄了

xjj2004 @ 2023-11-29 22:13:45

#include<stdio.h> 
#include<string.h>

int main()
{
    int n;
    int in1, in2, out;
    char calculation[50];
    char conculate = '\0';
    scanf("%d", &n);
    char ch[50][100];
    getchar();
    for (int i = 0; i < n; i++)
    {
        scanf("%[^\r\n]", ch[i]);
        getchar();
    }
    for (int i = 0; i < n; i++)
    {

        if (ch[i][0] >= 'a' && ch[i][0] <= 'c')
            sscanf(ch[i], "%c %d %d", &conculate, &in1, &in2);
        else
            sscanf(ch[i], "%d %d", &in1, &in2);
        switch (conculate)
        {
        case 'a':
        {
            out = in1 + in2;
            sprintf(calculation, "%d+%d=%d", in1, in2, out);
            int l = strlen(calculation);
            printf("%s\n%d\n", calculation, l);
            break;
        }
        case 'b':
        {
            out = in1 - in2;
            sprintf(calculation, "%d-%d=%d", in1, in2, out);
            int l = strlen(calculation);
            printf("%s\n%d\n", calculation, l);
            break;
        }
        case 'c':
        {
            out = in1 * in2;
            sprintf(calculation, "%d*%d=%d", in1, in2, out);
            int l = strlen(calculation);
            printf("%s\n%d\n", calculation, l);
            break;
        }
        }
    }
    return 0;
}

by carloney2 @ 2023-12-02 13:03:44

#include<stdio.h> 
#include<string.h>

int main()
{
    int n;
    int in1, in2, out;
    char calculation[50];
    char conculate = '\0';
    scanf("%d", &n);
    char ch[50][100];
    int c;
    while ((c = getchar()) != '\n' && c != EOF);
    for (int i = 0; i < n; i++)
    {
        scanf("%[^\r\n]", ch[i]);
        int c;
        while ((c = getchar()) != '\n' && c != EOF);
    }
    for (int i = 0; i < n; i++)
    {

        if (ch[i][0] >= 'a' && ch[i][0] <= 'c')
            sscanf(ch[i], "%c %d %d", &conculate, &in1, &in2);
        else
            sscanf(ch[i], "%d %d", &in1, &in2);
        switch (conculate)
        {
        case 'a':
        {
            out = in1 + in2;
            sprintf(calculation, "%d+%d=%d", in1, in2, out);
            int l = strlen(calculation);
            printf("%s\n%d\n", calculation, l);
            break;
        }
        case 'b':
        {
            out = in1 - in2;
            sprintf(calculation, "%d-%d=%d", in1, in2, out);
            int l = strlen(calculation);
            printf("%s\n%d\n", calculation, l);
            break;
        }
        case 'c':
        {
            out = in1 * in2;
            sprintf(calculation, "%d*%d=%d", in1, in2, out);
            int l = strlen(calculation);
            printf("%s\n%d\n", calculation, l);
            break;
        }
        }
    }
    return 0;
}

getchar（）是用于清除一个字符，直接改成清楚一整行就可以过了，这洛谷你输入enter实际上是\r\n,我也卡了好久，太痛苦了