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| public static void solve() {
String s = "3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679";
int n = io.nextInt();
io.println(s.substring(0, n + 2));
}
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| public static void solve() {
int n = io.nextInt();
List<Integer>[] arr = new List[37];
Arrays.setAll(arr, k -> new ArrayList<>());
int[] cnt = new int[n];
for (int i = 0; i < n; i++) {
cnt[i] = io.nextInt();
for (int j = 0; j < cnt[i]; j++) {
arr[io.nextInt()].add(i);
}
}
int x = io.nextInt(), min = 37;
for (int i : arr[x]) min = Math.min(min, cnt[i]);
List<Integer> ans = new ArrayList<>();
for (int i : arr[x]) if (cnt[i] == min) ans.add(i);
io.println(ans.size());
for (int t : ans) io.print(t + 1 + " ");
io.println();
}
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| public static void solve() {
int n = io.nextInt(), m = io.nextInt();
char[] s = io.next().toCharArray();
List<Integer>[] arr = new List[m];
Arrays.setAll(arr, k -> new ArrayList<>());
for (int i = 0; i < n; i++) {
arr[io.nextInt() - 1].add(i);
}
for (var v : arr) {
if (v.size() == 0) continue;
char c = s[v.get(v.size() - 1)];
for (int i = v.size() - 2; i >= 0; i--) {
s[v.get(i + 1)] = s[v.get(i)];
}
s[v.get(0)] = c;
}
io.println(new String(s));
}
|
记录时间，每次进行全局操作时将当前时间加一，并记录操作的编号，每次进行局部操作时将对应位置的操作时间更新为当前时间。如果最后某个位置的时间小于当前时间，则需要变换大小写；否则，不需要变换大小写。
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| public static void solve() {
int n = io.nextInt();
char[] s = io.next().toCharArray();
int[] time = new int[n];
int q = io.nextInt(), curTime = 0, flag = 0;
while (q-- != 0) {
int t = io.nextInt(), x = io.nextInt() - 1;
char c = io.next().charAt(0);
if (t == 1) {
s[x] = c;
time[x] = curTime;
} else {
flag = t;
curTime++;
}
}
for (int i = 0; i < n; i++) {
if (time[i] < curTime) {
if (flag == 2) s[i] = Character.toLowerCase(s[i]);
else s[i] = Character.toUpperCase(s[i]);
}
}
io.println(new String(s));
}
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