/ Vijos /

# 记录详情

```foo.cc: In member function 'Wint& Wint::check()':
foo.cc:27:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
27 |         for(int i=1; i<size(); ++i)
|                      ~^~~~~~~
foo.cc: In function 'Wint& operator+=(Wint&, const Wint&)':
foo.cc:91:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
91 |     for(int i=0; i!=b.size(); ++i)a[i]+=b[i];
|                  ~^~~~~~~~~~
foo.cc: In function 'Wint& operator-=(Wint&, Wint)':
foo.cc:102:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
102 |     for(int i=0; i!=b.size(); a[i]-=b[i],++i)
|                  ~^~~~~~~~~~
foo.cc: In function 'Wint operator*(const Wint&, const Wint&)':
foo.cc:124:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
124 |     for(int i=0; i!=a.size(); ++i)
|                  ~^~~~~~~~~~
foo.cc:125:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
125 |         for(int j=0; j!=b.size(); ++j)
|                      ~^~~~~~~~~~
foo.cc: In function 'int main()':
foo.cc:182:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
182 |     scanf("%d %d", &n, &m);
|     ~~~~~^~~~~~~~~~~~~~~~~
foo.cc:187:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
187 |             scanf("%d", &cur);
|             ~~~~~^~~~~~~~~~~~
```
`[Hydro](https://hydro.ac)提供评测服务`
# 状态 耗时 内存占用
#1 Accepted 2ms 384.0 KiB
#2 Accepted 2ms 384.0 KiB
#3 Accepted 3ms 512.0 KiB
#4 Accepted 15ms 512.0 KiB
#5 Accepted 31ms 512.0 KiB
#10 Accepted 4ms 384.0 KiB

# 信息

P1378 矩阵取数游戏

C++

2022-04-04 23:20:40

2022-04-04 23:20:40

60

678ms

768.0 KiB