Submission #671602

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
const int MAXN = 200;
int n;
char s1[MAXN], s2[MAXN];
int fa[MAXN];
bool notnum[MAXN];
int find(int x) {
    return fa[x] == x ? x: fa[x] = find(fa[x]);
}
void merge(int x, int y) {
    int fx = find(x), fy = find(y);
    if(fx != fy) {
        fa[fy] = fx;
    }
}
int main() {
        scanf("%d", &n);
        scanf("%s%s", s1, s2);
        memset(notnum, 0, sizeof notnum);
        for(int i = 0; i < n; i ++) {
            fa[s1[i]] = s1[i];
            fa[s2[i]] = s2[i];
        }
        for(int i = 0; i < n; i ++) {
            merge(s1[i], s2[i]);
            notnum[s1[i]] = notnum[s2[i]] = true;
        }
        for(char i = '0'; i <= '9'; i ++) {
            notnum[find(i)] = false;
        }
        long long ans = 1;
        for(char i = 'A'; i <= 'Z'; i ++) {
            if(notnum[i] && find(i) == i) {
                if(s1[0] != i && s2[0] != i) {
                    ans *= 10;
                } else {
                    ans *= 9;
                }
            }
        }
        printf("%lld\n", ans);
    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:18:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &n);
                        ^
./Main.cpp:19:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%s%s", s1, s2);
                              ^

Judge Result