41 lines
1012 B
C++
41 lines
1012 B
C++
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#include <iostream>
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using namespace std;
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int main()
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{
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int n, m, ans = 0;
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int pa[100001] = { 0 }, zhi[100001] = { 0 };
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cin >> n >> m;
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for (int i = 1; i <= m; i++) {
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char u;
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int a, b;
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cin >> u >> a >> b;
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//00
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if (pa[a] == 0 && pa[b] == 0) {
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ans++;
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pa[a] = ans;
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pa[b] = ans;
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zhi[ans] = ans;
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} else {
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//11
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while(zhi[pa[a]] !=pa[a]){
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a=zhi[pa[a]]
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}
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if (zhi[pa[a]] != zhi[pa[b]] && pa[a] > 0 && pa[b] > 0) {
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ans--;
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zhi[pa[a]] = zhi[pa[b]];
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} else {
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//10
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if (zhi[pa[a]] > 0) {
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pa[b] = pa[a];
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} else {
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//01
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pa[a] = pa[b];
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}
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}
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}
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}
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cout << "1";
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for (int i = 1; i <= ans; i++) {
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cout << "0";
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}
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}
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