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武汉科技大学ACM ：1008: A+B for Input-Output Practice (VIII)
Problem Description
Your task is to calculate the sum of some integers.
Input
Input contains an integer N in the first line, and then N lines follow. Each line starts with a integer M, and then M integers follow in the same line.
Output
For each group of input integers you should output their sum in one line, and you must note that there is a blank line between outputs.
Sample Input
34 1 2 3 45 1 2 3 4 53 1 2 3
Sample Output
10156
#include <iostream> using namespace std; int main() { int N; cin >> N; while (N--) { int M,sum = 0; cin >> M; while (M--) { int i; cin >> i; sum += i; } cout << sum << endl; if (N != 0)cout << endl;//没有此行运行时会出现错误：Presentation Error } return 0; }
武汉科技大学ACM ：1008: A+B for Input-Output Practice (VIII)
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