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include
int main() {
int testcases; scanf("%d", &testcases); int i; for(i=0;i<testcases;i++){ int numberofpeople; scanf("%d", &numberofpeople); printf("%d\n", (numberofpeople*(numberofpeople-1))/2); } return 0;
}
king gg
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include
include
include
include
int main() {
}
king gg